The Demarest Nature Center Association

Canoe Day, Birdhouses/Birdfeeder Building, Earth Day/Arbor Day

May 10, 2025

Event Details

Community Trail Walk

May 3, 2025

 

Click here to read our latest Winter 2025 newsletter!

 “We don’t stop hiking because we grow old,
we grow old because we stop hiking.

~Finis Mitchell

Keep an eye out for this magnificent tree
that is often overlooked but full of beauty and utility

~ Jeff Shaari

 “We don’t stop hiking because we grow old,
we grow old because we stop hiking.

~Finis Mitchell

Welcome To The Demarest Nature Center

The Demarest Nature Center is located in Demarest, NJ, USA, and is open to all persons, residents and non-residents alike, every day of the year. In addition to preserving and protecting important open space here in the midst of a large metropolitan area, the center seeks to educate young and old alike as to the beauty of nature and the importance of protecting our environment.

We, the trustees of the Demarest Nature Center Association, encourage you to use this site to find out more about the Demarest Nature Center and its programs. Click on the topic of your choice and find out more. The links will tell you about the Center, introduce you to our events and endeavors, and also take you to other nearby nature centers, as well as environmental organizations, National Parks, and suggestions for things to do. The site is constantly growing and being updated, so we hope you will come back again and again.

Nature News

Penguin poop helps form clouds over Antarctica, potentially cooling it

In Antarctica, penguin poop, or guano, can cover the ground for miles, especially around penguin colonies with thousands of individuals. In fact, large, brown guano stains on Antarctica’s white ice more

Making nature a healing place: Interview with Colombia’s Enilda Jiménez

The Gulf of Urabá, on the northwestern coast of Colombia, is a territory living in a constant social, economic and environmental struggle for existence. Biologically, Urabá is a complex biodiversity more

What are small nuclear reactors and why does the UK want to build them?

The government is betting on a new generation of 'mini' nuclear power stations. more

What are small nuclear reactors and why does the UK want to build them?

The government is betting on a new generation of 'mini' nuclear power stations. more

As tree planting gathers pace in Bangkok, urban green spaces still under threat

BANGKOK — Urban tree-planting efforts are gathering pace in Bangkok, underpinned by aspirations to boost climate resilience, mitigate dust pollution, and conserve biodiversity. However, a recent study warns that the more

High-profile wildlife trafficking case tests Malawi’s conservation commitment

LILONGWE — In 2021, Malawian authorities found Lin Yunhua and 14 other members of an international trafficking syndicate in possession of pangolin scales, rhino horns, and elephant and hippo ivory. more

Indonesia halts most nickel mining in Raja Ampat, but allows one controversial permit

JAKARTA — The Indonesian government has revoked four out of five nickel mining permits in the Raja Ampat archipelago following a public outcry over mining in one of the world’s more

Chinese locales are looking to lure top scientific talent from overseas by offering lavish sums for resettling, as well as housing, health care, and other perks. The moves come as more

A drop in the ocean: does experimental technology hold the key to saving the world’s seas?

Investment is pouring into companies promising to geoengineer a rapid change in the pH of our waters – but critics are concerned at the speed at which unproven methods are more

The Pattison Co. quarry in Garnavillo, Iowa, pumps nearly 1 billion gallons of groundwater each year, pulling it from the bedrock in order to mine limestone, sandstone and silica sand more

IRONWOOD FOREST NATIONAL MONUMENT, Ariz.—Standing in front of a crowd of 100 people Saturday, Mike Quigley pointed out into the distance to a nearby copper mine. “We can have that,” more

PHOENIX—A federal judge ruled Monday that the U.S. Forest Service cannot transfer land containing Oak Flat, a site sacred to the Western Apache, to a copper mining company until two more

In California, a biomass company’s expansion raises fears of more fires

Facilities that make wood pellets have a track record of catching on fire. So why are there plans to build several near Yosemite's tinderbox forests? more

Trump’s second term is creating ‘a limbo moment’ for US battery recyclers

The president hasn't directly targeted the nascent industry, but his clean energy rollbacks could hurt it. more

Dead elephants and feral sea lions: how poisonous algal blooms harm the planet

As the Earth heats up, the amount of algae in our waterways is rapidly increasing, transforming the colour of lakes and killing entire ecosystemsBefore the elephants collapsed, they walked in more

Country Diary: A specialist insect on a specialist plant | Nic Wilson

Isle of Portland, Dorset: After scanning the cliffs and seas for guillemots and razorbills, I need to go low and slow to see a down shieldbugI’ve returned to the limestone more

Scientists warn against attempts to change definition of ‘forever chemicals’

Move to narrow classification of Pfas and weaken regulation is ‘politically and/or economically motivated’A group of 20 internationally renowned scientists have issued a strong warning against attempts to narrow the more

How does woke start winning again? | Gaby Hinsliff

British progressives have suffered major setbacks in recent years, in both public opinion and court rulings. Was a backlash inevitable, and are new tactics needed?Inside a coffin-like glass box lies more

New Zealand is failing to protect its vast ocean resources. We owe it to the world to act | Helen Clark and Kayla Kingdon-Bebb

Less than 1% of our country’s seas are highly protected and the damaging practice of bottom-trawling must be restrictedIt’s a remarkable feat that a small, isolated island nation of just more

Warning over 'dirty secret' of toxic chemicals on farmers' fields

Campaigners say that farmers' fields are being contaminated by chemicals and microplastics in sewage sludge. more

Warning over 'dirty secret' of toxic chemicals on farmers' fields

Campaigners say that farmers' fields are being contaminated by chemicals and microplastics in sewage sludge. more

A critical measure of the ocean’s health suggests that the world’s marine systems are in greater peril than scientists had previously realized and that parts of the ocean have already more

Rare earth rush in Myanmar blamed for toxic river spillover into Thailand

CHIANG RAI, Thailand — Just days before the water fights were set to erupt across Chiang Rai for Songkran — Thailand’s New Year celebration, held every April and known for more

Variety of wildlife in UK’s woodlands falling as habitats degrade, says report

Only 7% of Britain’s woodlands in good condition, while number of birds fell by 15% over last five yearsThe variety of wildlife in the UK’s woodlands continues to decline as more

Gelada monkey vocalizations offer insight into human evolution: Study

With their bright red, hairless chests and grass-grazing lifestyle, gelada monkeys are quite unusual. They are the only primate, other than humans, to primarily live on land instead of in more

In Yaoundé, fecal sludge flows through ‘Caca Junction’ streets

Major streets of Yaoundé, the political capital of Cameroon, have turned into open sewers. Every day, hundreds of cubic meters of liquid waste — enough to fill more than an more

UN Ocean Conference Opens With a Call to Defend the Deep Sea

NICE, France—The deep sea—Earth’s largest and least-explored biome—is taking center stage at the United Nations Ocean conference this week, where marine experts are demanding world leaders end bottom trawling for more

Medellín’s sublime return to nature – in pictures

Over the last decade, Colombia’s ‘city of eternal spring’ has embarked on an ambitious effort to restore greenery to public parks, transit corridors and even high-rises Continue reading more

Pushback grows against nickel mining in Indonesian marine paradise of Raja Ampat

JAKARTA — The Indonesian government has suspended nickel mining in the Raja Ampat archipelago, citing multiple environmental violations by companies operating in the ecologically sensitive islands. The move follows viral more

World must move from ‘plunder to protection’ to save oceans, UN chief warns

Speaking at summit in France, António Guterres calls for bold pledges to stop deep sea becoming ‘wild west’Nations must move from “plunder to protection” in order to save the world’s more

Jaws at 50: Spielberg’s marine masterpiece transformed the movies – and us

The original blockbuster turned fear of sharks into decades of persecution but, at long last, the tide may be turningFifty years ago the world was changed for ever by a more

When our oceans can’t breathe, a sea change is needed (commentary)

When wildfires rage across landscapes, smoke fills our skies and chokes our lungs. It makes headlines, emergency measures are triggered, and communities rally to respond. We act because we can more

The Yurok tribe have reclaimed Blue Creek, 138 years after it was taken from them

Founder’s Briefs: An occasional series where Mongabay founder Rhett Ayers Butler shares analysis, perspectives and story summaries. The Yurok tribe of northern California has achieved what once seemed impossible: reclaiming the more

One-two punch for mangroves as seas rise and cyclones intensify

More than half of all mangrove areas worldwide may face “severe and widespread risk” from climate change-intensified tropical cyclones and rising sea levels by 2100, according to newly published research. more

EU appetite for EVs drives new wave of deforestation in tropical forests

Brazil, which accounts for large reserves of nickel, graphite, rare earths, lithium and niobium, would be one of the most affected countries. more

Mentawai’s primates are vanishing. One hunter is trying to save them.

Founder’s Briefs: An occasional series where Mongabay founder Rhett Ayers Butler shares analysis, perspectives and story summaries. In the jungles of Siberut Island, the cries of the bilou once echoed more

‘We are just sitting here’: South African coal belt town split over green transition

The country wants to cut greenhouse gas emissions without destroying livelihoods, but progress is slow – and the residents of a small town are in the crosshairsCooling towers and smokestacks more

Drug traffickers are violently seizing Indigenous lands in the Peruvian Amazon to clear rainforest and grow coca. To combat the drug trade, a new report calls for titling Indigenous territories more

Riding toward a greener future: E-bikes transform food delivery in South Africa

CAPE TOWN — Siphe Mlawuli stands next to her e-bike outside a popular fast-food outlet in Table Bay, a Cape Town suburb. The sun has just set, giving the sky more

M Marika, custodian of Yolŋu land and culture, died on June 4th, aged 64

In the Yolŋu worldview, land and people are not separate things. They are interwoven—spirit, soil, and songline one and the same. Few embodied that unity more steadily than M Marika, more

Oceans cannot become 'wild west', warns UN chief

UN Secretary General Antonio Guterres spoke at the start of the UN Oceans Conference in Nice, France. more

Oceans cannot become 'wild west', warns UN chief

UN Secretary General Antonio Guterres spoke at the start of the UN Oceans Conference in Nice, France. more

UK proposes wider ban on destructive ocean bottom trawling

The government wants to prohibit bottom trawling from more protected areas of UK waters. more

Israeli forces halt Gaza-bound aid yacht carrying Greta Thunberg – video

Israeli forces have taken command of a vessel that tried to circumvent its naval blockade of the Gaza Strip, sending the boat and its crew of 12 – including the more

ST. JOHN, U.S. Virgin Islands—Thirty-five feet deep in clear turquoise waters, a three-foot-long yellow underwater robot maneuvers over a coral reef at a popular snorkeling site named Tektite.  At the more

Illinois saw unprecedented solar growth in 2024, adding 2.5 gigawatts of capacity to nearly double its total generation potential from the year before. But this year, the state faces some more

When will a vital system of currents in the Atlantic Ocean collapse? Depends on whom you ask.

New research suggests the currents that help shape the climate may be weakening more slowly than thought. more

The curse of river dolphin ‘love perfumes’ (cartoon)

Already imperiled by habitat loss, climate change and the recent incidences of droughts in the Amazon, the endangered Amazon River Dolphins have yet another curse cast upon them- the myth more

There’s an invader turning huge swathes of Britain into deserts – and these dead zones are spreading | George Monbiot

Vast areas of land are now dominated by one species – purple moor-grass – and good luck with seeing a bird or insect there. How do we revive these habitats?Deserts more

‘Ticking timebomb’: sea acidity has reached critical levels, threatening entire ecosystems – study

Ocean acidification has already crossed a crucial threshold for planetary health, scientists say in unexpected findingMore on this story: How the ‘evil twin’ of the climate crisis is threatening our more

New population of rare douc langurs found in Vietnam’s highland forests

Researchers surveying forested mountains in south-central Vietnam have located a new subpopulation of gray-shanked douc langurs, a critically endangered monkey species. The discovery is a sign that more groups of more

On remote Indonesia karst outpost, Indigenous farmers fear the silence of the yams

BANGGAI ISLANDS, Indonesia — Dewdrops cling to weeds in the Banggai archipelago as Deslin Kalaeng grasps a large round root vegetable from the ancient karst. “That’s the Banggai yam,” she more

Nature, Published online: 09 June 2025; doi:10.1038/d41586-025-01777-7Sebastián Gregui’s company uses research-backed methods to turn recovered plastic into building materials. more

Nature, Published online: 09 June 2025; doi:10.1038/d41586-025-01748-yHospitals and universities must step up to fill gaps in regulation, experts say. more

Nature, Published online: 09 June 2025; doi:10.1038/d41586-025-01750-4Hundreds of policies across the country have been designed to lure researchers and new graduates to settle there. more

Nature, Published online: 09 June 2025; doi:10.1038/d41586-025-01606-xSandClub launched as an informal discussion forum to draw students out of their post-pandemic shells. Now, it’s so much more. more

Nature, Published online: 09 June 2025; doi:10.1038/s41586-025-09222-5NINJ1 regulates plasma membrane fragility under mechanical strain more

Nature, Published online: 09 June 2025; doi:10.1038/d41586-025-01824-3Companies selling authorship slots thrive in a culture that equates success with a strong publication record. Customers, sleuths and the shadowy owner of a more

Nature, Published online: 09 June 2025; doi:10.1038/d41586-025-01229-2Three-month summer holidays as a child in northwest Italy helped Stefano Sandrone to hone his relaxation and holiday-planning skills. Here’s his advice for scientists. more

Nature, Published online: 09 June 2025; doi:10.1038/d41586-025-01773-xFinally answering the most-vexed question in quantum theory might mean redefining what is real. more

Nature, Published online: 09 June 2025; doi:10.1038/d41586-025-01772-yA provocative book explores the barriers that hold women back, why previous diversity, equity and inclusion approaches have failed and how to move forward. more

Nature, Published online: 09 June 2025; doi:10.1038/d41586-025-01775-9Simulated lab accidents train students how to respond to real emergencies. more

Campaigners hail plan to ban bottom trawling in half of England’s protected seas

Environmental groups welcome government proposals to clamp down on destructive fishing practiceEnvironmental groups have welcomed government proposals to ban the destructive fishing practice known as bottom trawling in half of more

Data centers are building their own gas power plants in Texas

Not so long ago, developers of the massive server farms talked about powering them with wind and solar. Now, with the coming of power-hungry AI platforms, they’re bypassing the grid, more

William warns ocean life 'diminishing before our eyes'

The Prince of Wales gave a speech in Monaco hoping to drive investments to protect the world's oceans. more

After the Fires: Second in a series about health risks following the Los Angeles wildfires that destroyed Pacific Palisades and Altadena. This story was supported by the Pulitzer Center. LOS more

As soon as the skies clear after a hurricane hits eastern North Carolina, Larry Baldwin climbs in the passenger seat of a single-engine plane, usually with his friend and pilot more

Trying to get rid of noisy, food-stealing gulls is missing the point – it’s humans who are the pests | Sophie Pavelle

Hawks, spikes and sonic repellants are among the measures used to deter these birds. Perhaps we should try sharing our planetAt this year’s Cannes film festival, some unexpected hires joined more

Trump-Musk row heightens fears over Nasa budget cuts

The space agency has published its budget request to Congress which would see funding for science projects cut by nearly a half. more

Ocean damage unspeakably awful, Attenborough tells prince

Sir David Attenborough told Prince William he hopes the UN oceans conference will bring new protections. more

UN scientists propose ‘minerals trust’ to power green energy, protect communities

Rapidly scaling up renewable energy to limit future warming requires a sharp increase in the supply of critical minerals like cobalt, nickel and lithium for technologies including solar panels, battery more

The research highlights the groundwater issues complicating the Colorado River's already strained water supply. more

Adriana Jovanovic clambered cheerfully over the metal railing next to the dunes along Rockaway Beach. She landed in a patch of sand where she and her team, nicknamed the “dune more

Antarctica ‘too wild for humans to rule’, says Shackleton medal winner

Environmental lawyer Cormac Cullinan lauded for his work to establish continent’s legal status to protect its interestsCormac Cullinan has a dream. A dream, he says, that will “change how humanity more

In Nepal, northernmost sighting of Eurasian otter raises hope, concerns

KATHMANDU — A Eurasian otter (Lutra lutra) found in the Karnali River in western Nepal marks the species’ northernmost record in the country, offering hope for range expansion but raising more

Revived hydropower project to bring forced displacement, Peru communities warn

Back in 2010, Peru and Brazil signed an energy agreement that included the construction of several hydroelectric power plants in the Peruvian Amazon, which were meant to provide power to more

The transfer of a sacred site to a copper mine is delayed once again

A federal judge in Phoenix provides a reprieve for Oak Flat. more

Youth climate activists won lawsuits in Montana and Hawai‘i. Now they’re targeting Trump.

“Trump’s fossil fuel orders are a death sentence for my generation." more

Environmental crimes are often hidden by ‘flying money’ laundering schemes (commentary)

In the Tang dynasty, Chinese merchants began buying rice on credit with a system that relied on trust and trade to sidestep the authorities — and taxes — to deliver more

How trafficking & misconceptions threaten Nigeria’s wildlife: Q&A with Dr. Mark Ofua

In a significant blow to wildlife trafficking, Nigerian authorities recently seized 2 metric tons of pangolin scales, worth tens of thousands of dollars on the black market, and arrested a more

Bumble Bee asks court to dismiss lawsuit alleging forced labor in tuna supply chain

U.S. canned tuna producer Bumble Bee Foods has asked a court to dismiss a lawsuit alleging that it knowingly benefited from its suppliers’ use of forced labor by Indonesian workers. more

Australia to see more intense rains as climate change worsens, analysis shows

Scientists have warned that extreme rains could become more common in eastern Australia, following heavy downpours from May 19-23 that caused widespread flooding, claimed five lives and left some 50,000 more

Heavy rains inundate northeast India

Dozens of people are reported dead amid torrential rains over the past week in India’s northeastern region, local media reported. The most heavily affected states are Assam and Arunachal Pradesh. more

Climate change and shrinking Arctic sea ice threaten bowhead whales

Bowhead whales are endemic to the icy waters of the Arctic and prefer living in shallow waters near sea ice, filtering krill and tiny crustaceans called copepods for food. However, more

The ongoing war in the Gaza Strip has obliterated crops and trees, according to a new assessment of the impact.Read more on E360 → more

Eucalyptus boom in Brazil’s Cerrado dries up springs, forces out smallholders

A eucalyptus boom in Brazil’s biodiverse Cerrado savanna is drying up land and water springs, making subsistence farming more difficult, local authorities and farmers tell Mongabay. Adilso Cruz, a 46-year-old more

World Oceans Day: Scientists find new clues about frontiers of ocean life

In 2008, the United Nations recognized June 8 as World Oceans Day to spotlight the rising vulnerabilities facing the oceans that cover more than 70% of Earth’s surface. Seventeen years more

Analysts agree on one thing: Congress is poised to increase energy bills by hundreds of dollars per household. more

Most new build homes must have solar panels - Miliband

The energy secretary says the move will cut energy bills, but house builders caution against burdensome regulations. more

Unnoticed oil & gas threat looms for Indigenous people near Amazon blocks

While oil prospects in the Amazon north shore attract international attention, the offer of exploration blocks around Indigenous territories goes unnoticed in Mato Grosso state. more

‘It’s goodbye to French fishermen’: Macron under pressure as crucial UN ocean summit opens

As delegates prepare for the global gathering, the president is caught between opposing sides in a row over bottom trawling in France’s marine protected areasOn his trawler in Saint-Malo, one more

Week in wildlife: an elephant goes shopping and a tiger gets a pedicure

The best of this week’s wildlife photographs from around the world Continue reading more

The reaches, limits and (alleged) biases of feasibility studies and environmental licenses

The EIA is an integral (high-profile) component of regulatory process that has evolved over the last couple of decades to extend ‘upstream’ into the planning process and ‘downstream’ into the more

I love the graffiti I see in Paris – but tagging is just visual manspreading | Alexander Hurst

Call me a middle-class ‘bobo’, but inspired street art has nothing in common with sprayed-on assertions of ‘me, me, me’Among the layers of life in Paris that energise me, I more

Nature, Published online: 06 June 2025; doi:10.1038/d41586-025-01813-6We discuss the massive costs and challenges associated with the goal, and what proposed budget cuts to NASA could mean for other space missions. more

Nature, Published online: 06 June 2025; doi:10.1038/d41586-025-01819-0An amino acid used as a supplement and in energy drinks might not be as closely linked to ageing as previous research has suggested. more

Nature, Published online: 06 June 2025; doi:10.1038/d41586-025-01800-xAndrew Robinson reviews five of the best science picks. more

Nature, Published online: 06 June 2025; doi:10.1038/s41586-025-09146-0Author Correction: GluD1 is a signal transduction device disguised as an ionotropic receptor more

Nature, Published online: 06 June 2025; doi:10.1038/d41586-025-01727-3A score based on indicators related to research quality could help to prevent institutions gaming the metrics that feed into conventional rankings. more

Nature, Published online: 06 June 2025; doi:10.1038/d41586-025-01792-8Pioneering organization aims to boost collaboration, track climate effects and improve disaster relief. more

Nature, Published online: 06 June 2025; doi:10.1038/d41586-025-01805-6Boom in infections in the West African nation is driven by the same viral strain that caused a global outbreak in 2022. more

Nature, Published online: 06 June 2025; doi:10.1038/d41586-025-01764-yEurope’s ExoMars mission is among the highest-profile casualties of the US president’s plan to slash research funding. more

Nature, Published online: 06 June 2025; doi:10.1038/d41586-025-01751-3Early investigations by the Japanese company ispace identified issues with speed and a sensor measuring the craft’s altitude. more

Dehorning rhinos reduces poaching by 80%, study finds

Cutting off the animals’ horns more effective than traditional protection methods such as rangers and costs less, say expertsCutting the horns off rhinos causes a large reduction in poaching, according more

BBC Inside Science

Inside Science heads to the One Ocean Science Congress in Nice, France. more

How 3 years of war have ravaged Ukraine’s forests, and the people who depend on them

Nearly 5 million acres have burned since Russia’s latest invasion in 2022, ignited by rocket fire, artillery shelling, and explosive devices. more

In California’s largest landback deal, the Yurok Tribe reclaims sacred land around Klamath River

"It's our job, our inherent right, to take care of the Klamath Basin and its river.” more

The smoke from Canada’s wildfires may be even more toxic than usual

A legacy of mining means that toxic metals could be carried along plumes of smoke. more

Ten Tasmanian devil joeys discovered during pouch check of endangered marsupials  – video

Researchers at Aussie Ark have found 10 Tasmanian devil joeys during the first pouch check of the endangered marsupial's 2025 breeding season, which runs from February to June each year. more

Nature, Published online: 05 June 2025; doi:10.1038/d41586-025-01684-xAn intimate look at a puffy exoplanet and its nearest star has revealed its tragic destiny. more

Nature, Published online: 05 June 2025; doi:10.1038/d41586-025-01774-wAs heads of Pacific island nations, we urge governments worldwide to avoid irreversible environmental damage to the region as well as the needless economic more

Nature, Published online: 05 June 2025; doi:10.1038/d41586-025-01753-1The model, called ether0, outperforms other advanced AIs at chemistry tasks and is a stepping stone towards automating the entire research pipeline. more

Nature, Published online: 05 June 2025; doi:10.1038/d41586-025-01720-wJudge sets court date to hear the US government detail how termination directives were made. more

Nature, Published online: 05 June 2025; doi:10.1038/d41586-025-01808-3The Trump administration’s latest policies hit science hard. Plus, Chinese temples provide refuge for endangered trees and mice embryos with XY chromosomes can grow more

Nature, Published online: 05 June 2025; doi:10.1038/d41586-025-01749-xMajor US science funder could lose more than half its budget — and researchers are reeling. more

Nature, Published online: 05 June 2025; doi:10.1038/d41586-025-01747-zMassive study finds limited connection between ageing and taurine levels in people, monkeys and mice. more

Nature, Published online: 05 June 2025; doi:10.1038/d41586-025-01791-9Restrictions on immigration from 19 countries could disrupt infectious disease research and international collaborations. more

Nature, Published online: 05 June 2025; doi:10.1038/d41586-025-01759-9Your cover letter, CV and resume need to stand out from the crowd, but using artificial intelligence to help comes with a warning. more

Nature, Published online: 05 June 2025; doi:10.1038/d41586-025-01755-zSurvey uncovers the rich biodiversity protected at sacred sites. more

Nature, Published online: 05 June 2025; doi:10.1038/d41586-025-01797-3Two quantum-simulation experiments make a step towards understanding the forces between elementary particles. more

Nature, Published online: 05 June 2025; doi:10.1038/d41586-025-01528-8When I was a postgraduate, two of my close mentors died. Here’s how I coped. more

Window collisions and cats kill more birds than wind farms do, but ornithologists say turbine impacts must be taken seriously. Scientists are testing a range of technologies to reduce bird more

Cuts to USAID severed longstanding American support for Indigenous peoples around the world

Without U.S. funding, Indigenous communities in Peru and elsewhere face increasing threats to their land, livelihoods, and human rights. more

This spring was the warmest and sunniest on record in the U.K., a symptom of a rapidly warming climate, weather officials say.Read more on E360 → more

Funding to protect American cities from extreme heat just evaporated

NOAA's Center for Heat Resilient Communities would have helped cities better understand their struggles with heat — and deploy solutions for keeping residents safe. more

The sneaky way even meat lovers can lessen their climate impact

Mixing vegetables into processed meat can lower emissions — without compromising taste. more

Trump officials open up millions of acres in Alaska to drilling and mining

Doug Burgum says Biden order that banned drilling in National Petroleum Reserve-Alaska will be reversed. more

Nature, Published online: 04 June 2025; doi:10.1038/d41586-025-01762-0Iron deficiency disrupts a sex-determining pathway in mice — plus, research highlighting the role that small-scale fishers play in sustainability. more

Nature, Published online: 04 June 2025; doi:10.1038/d41586-025-01694-9A brief encounter. more

Nature, Published online: 04 June 2025; doi:10.1038/d41586-025-01699-4A surprising pattern of spatial distribution was discovered in dwarf galaxies, whereby diffuse ones cluster more strongly than do compact ones — opposite to more

Nature, Published online: 04 June 2025; doi:10.1038/d41586-025-01739-zGroup behind Retraction Watch aims to pinpoint the most influential flawed health data. more

Nature, Published online: 04 June 2025; doi:10.1038/s41586-025-09071-2Comprehensive pan-cancer analysis of loss of the Y chromosome (LOY) in benign and malignant cells establishes a new model linking LOY in circulating and more

Nature, Published online: 04 June 2025; doi:10.1038/s41586-025-09093-wReconstitution of seven human RNA polymerase III (Pol III) transcribing complexes (TC4/5/6/8/10/12/13) halted on U6 promoters with nascent RNAs of 4–13 nucleotides offers molecular more

Nature, Published online: 04 June 2025; doi:10.1038/d41586-025-01738-0Kári Stefánsson, who last month left the Icelandic genetics company deCODE, spoke to Nature about his legacy. more

Nature, Published online: 04 June 2025; doi:10.1038/d41586-025-01452-xA global analysis reveals that most carbon dioxide emitted by rivers derives not from modern plant material, as was thought, but from ancient, buried more

Nature, Published online: 04 June 2025; doi:10.1038/d41586-025-01456-7In mice, a lack of maternal iron impairs an iron-dependent enzyme that activates the male sex-determining gene, causing some XY embryos to develop ovaries. more

Nature, Published online: 04 June 2025; doi:10.1038/d41586-025-01726-4Economic policies are lacking in data on small-scale fisheries. A team of researchers is determined to change that. more

Nature, Published online: 04 June 2025; doi:10.1038/d41586-025-01450-zPrognosis is poor for tumours with Y-chromosome loss. Examining the interplay between cancer and immune cells sheds light on potential mechanisms. more

Nature, Published online: 04 June 2025; doi:10.1038/s41586-025-09089-6An algorithm called time–magnitude reinforcement learning (TMRL) extends distributional reinforcement learning to take account of reward time and magnitude, and behavioural and neurophysiological experiments more

Nature, Published online: 04 June 2025; doi:10.1038/s41586-025-09037-4Gradients of cell recognition molecules wire a sensorimotor interface in Drosophila. more

Nature, Published online: 04 June 2025; doi:10.1038/s41586-025-08991-3Dynamic range and precision of hybrid vision sensors more

Nature, Published online: 04 June 2025; doi:10.1038/s41586-025-09047-2Increased atmospheric evaporative demand in recent years has increased drought severity by an average of 40% globally across both dry and wet regions, and more

Nature, Published online: 04 June 2025; doi:10.1038/d41586-025-01666-zA huge research project is highlighting the role that small-scale fishers play in sustainability. more

Nature, Published online: 04 June 2025; doi:10.1038/s41586-025-09044-5An ultra-low-loss integrated photonic chip fabricated on a customized multilayer silicon nitride 300-mm wafer platform, coupled over fibre with high-efficiency photon number resolving detectors, more

Nature, Published online: 04 June 2025; doi:10.1038/s41586-025-08999-9In a quantum simulation of a (2+1)D lattice gauge theory using a superconducting quantum processor, the dynamics of strings reveal the transition from deconfined more

Nature, Published online: 04 June 2025; doi:10.1038/s41586-025-09087-8The transcription factor CREM is a pivotal regulator of NK cell function, making CREM a valuable target to increase the efficacy of anticancer immunotherapies more

Nature, Published online: 04 June 2025; doi:10.1038/s41586-025-09023-wUsing a global database of the radiocarbon content of rivers combining new and published measurements, isotopic mass balance suggests that about 60% of river more

Nature, Published online: 04 June 2025; doi:10.1038/s41586-025-09125-5The chromatin-remodelling enzyme ATRX and the transcription factor HNF4A are identified as pivotal regulators of colonic epithelial identity, with roles in metastasis in colorectal more

Nature, Published online: 04 June 2025; doi:10.1038/d41586-025-01581-3Two-dimensional quantum platforms have simulated a process in particle physics called string breaking that generates matter–antimatter pairs. more

Nature, Published online: 04 June 2025; doi:10.1038/s41586-025-09052-5The outflow pathway of cerebrospinal fluid into lymph nodes in the neck and how non-invasive mechanical stimulation can enhance drainage and restore impaired outflow more

Our Mission

Demarest Nature Center - Duffy Bridge

According to the 1972 articles of Incorporation, the purposes of the organization are:

  • To acquire or lease undeveloped lands and establish thereon educational building(s).
  • To develop natural history and conservation education programs in cooperation with schools, colleges, hospitals, youth groups and other organizations which will develop an understanding and appreciation of natural resources.
  • To cooperate with national, state, county, municipal and private natural resource agencies in providing an outdoor laboratory in which to demonstrate natural resource problems and management techniques.

 Check Out Our Latest Newsletter & History of DNC

Events

What We Sponsor

The DNC sponsors numerous programs to bring residents of Demarest and the surrounding areas into closer contact with wildlife and the natural world. Programs have varied, including lectures on native plants, family hikes, maple syrup making, bird watching & counts, birdhouse building, mushroom foraging walk, community trail walk and children’s scavenger hunts.  Local outdoor activities have been held at the Nature Center, Wakelee Field, various school grounds, and at the Duck Pond.

TripAdvisor

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Mail

Demarest Nature Center
Box 41
Demarest, NJ 07627

Location

90 Park St, Demarest, NJ 07627

Trail Map

You can download a Trail Map here.

Become a Member

Since its incorporation in 1977 the Demarest Nature Center Association has cared for a 55-acre parcel of land bordered by Columbus Road on the west and County Road on the east. The Demarest Nature Center is open to all every day of the year. In addition to protecting woods, vernal ponds, meadows, and a section of the Tenakill Brook, as well as establishing and maintaining walking trails, the center provides educational events for everyone about the beauty of nature and the importance of preserving our amazing forest habitat. Your membership dollars go towards sponsorship of environmental education programs for kindergarten through the fourth grade in the Demarest schools, and a yearly scholarship given to a local high school senior who plans to pursue environment-related studies in college. Your membership also helps support our birdhouse/bird feeder building program, our annual photo contest, maple syrup making, environmental scholarships, monthly community trail walks and the Craft Show at Oktoberfest/Fall Festival Event.

The Demarest Nature Center Association is a 501(c)(3) not-for-profit corporation, run solely by volunteers and receives no funding from the Borough of Demarest.

Residents of Demarest receive all DNC mailings as postal patrons. Non-resident members receive DNC mailings by 1st class mail.

Come Join Us And Become a Member

Photo Gallery