Bergen County Audubon Society's Spring Bird Count

May 11, 2024


Community Trail Walk

June 1, 2024
10:00 AM


The Demarest Nature Center Association

 “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

Eagles shifting flight paths to avoid Ukraine conflict, scientists find

Vulnerable birds deviating from migratory routes by up to 155 miles, which could affect breedingEagles that have migratory routes through Ukraine have shifted their flight paths to avoid areas affected more

Electric pulses may ease paralysis after broken neck

One patient who lost movement in her hand can now use it to scroll on a smartphone. more

Microplastics found in every human testicle in study

Scientists say discovery may be linked to decades-long decline in sperm counts in men around the worldMicroplastics have been found in human testicles, with researchers saying the discovery might be more

I invented a pedal-powered home office. Now I exercise – and save energy – at my desk

Read more from the DIY Climate Changers, a new series on everyday people’s creative solutions to the climate crisisJim Gregory, 59, loves to cycle. More than a decade before the more

Fish deaths in England’s rivers rise tenfold in four years

More than 216,000 fish died in 2022-2023, when England recorded a 54% increase in sewage spillsMass deaths of fish in England’s rivers have increased almost tenfold since 2020, with fears more

Britain’s public parks are a green lifeline – stop fencing them off for the summer | Rebecca Tamás

These spaces are crucial for our wellbeing, but cash-strapped councils are being forced to treat them as revenue earnersMy local green space, Brockwell Park in Brixton and Herne Hill, south more

MEDFORD, Mass.—Inside a cinder block office building perhaps best known for the Hindu temple and table tennis club next door, a startup company is testing what may be one of more

Nick Witcraft knew he’d have a busy morning when his phone notified him that Canadian wildfire smoke was drifting across the U.S.-Canadian border eight days ago.  Witcraft, a meteorologist for more

Bottled water is full of microplastics. Is it still ‘natural’?

Recent lawsuits say Arrowhead, Evian, Poland Spring, and other water bottlers are deceiving customers. more

A record-breaking drought, fueled by the El Niño weather pattern, has caused widespread crop failure and national emergency declarations in Zambia, Malawi, and Zimbabwe. Without harvests of maize, the staple more

The Bezos Earth fund has pumped billions into climate and nature projects. So why are experts uneasy?

Jeff Bezos’s $10bn climate and biodiversity fund has garnered glittering prizes, but concerns have been voiced over the influence it can buy – and its interest in carbon offsetsLate last more

‘Free Bella’: campaigners fight to save lonely beluga whale from Seoul mall

Five years after her last companion died and the aquarium’s owner pledged to free her, Bella still languishes in a tiny tank amid shopsIn the heart of Seoul, amid the more

Scotland’s vulnerable marine life not properly protected, campaigners warn

Scottish government accused of missing deadlines to take action on overfishing and effects of climate breakdownFragile and damaged marine life around Scotland’s coasts is not being properly protected because ministers more

Nature, Published online: 20 May 2024; doi:10.1038/d41586-024-01471-0Researchers find ways to interweave faith and science, from discussing Ramadan fasts with colleagues to applying religious parables to lab work. more

Nature, Published online: 20 May 2024; doi:10.1038/d41586-024-01462-1Terms such as sustainability and inclusivity loom large in big infrastructure projects. But impact and value for money needs measuring too, says Sinan Küfeoğlu. more

Nature, Published online: 20 May 2024; doi:10.1038/d41586-024-01457-yThe first case in East Asia to challenge government climate policies will boost awareness of global warming and encourage further lawsuits in the region. more

Nature, Published online: 20 May 2024; doi:10.1038/d41586-024-01474-xMackenzie and Alexander Mathis were still early in their careers when their software created a sensation. Now they’re using it to support other young more

Nature, Published online: 20 May 2024; doi:10.1038/s41586-024-07526-6In vitro reconstitution of epigenetic reprogramming in the human germ line more

Nature, Published online: 20 May 2024; doi:10.1038/s41586-024-07395-zA warm Neptune’s methane reveals core mass and vigorous atmospheric mixing more

Nature, Published online: 20 May 2024; doi:10.1038/d41586-024-01470-1Without international partnerships, NASA’s groundbreaking mission could fail to be ready in time for its optimal launch window. more

Nature, Published online: 20 May 2024; doi:10.1038/s41586-024-07556-0A deep catalogue of protein-coding variation in 983,578 individuals more

Nature, Published online: 20 May 2024; doi:10.1038/d41586-024-01479-6An empty room can be intimidating. But with some thoughtful planning, you can create a thriving scientific community. more

Nature, Published online: 20 May 2024; doi:10.1038/d41586-024-01444-3Researchers have debated the best management plan for highly endangered fish species since the 1980s. more

Nature, Published online: 20 May 2024; doi:10.1038/d41586-024-01475-wNeven Iveša investigates the invasive species in the Adriatic Sea, and works out how to lessen its impact. more

Nature, Published online: 20 May 2024; doi:10.1038/s41586-024-07514-wA high internal heat flux and large core in a warm neptune exoplanet more

Earlier this May, celebrities gathered in New York City for the Met Gala, one of the biggest and most extravagant fashion events of the year. This year, the dress code more

The Guardian view on net zero: a bank-led green transition won’t work for Britain | Editorial

A state industrial strategy is needed to reduce carbon output, produce cleaner growth and redistribute jobs around the UKTheresa May and Boris Johnson both argued for levelling up and for more

Wealthy residents of Chicago may live 30 years longer than poorer ones. Can a new mayor help close the gap?

Brandon Johnson promised to tackle the city’s legacy of environmental racism, with communities of color facing disproportionate climate risks On the campaign trail, Brandon Johnson often talked about the asthma more

Why are bodies of water so calming?

The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical conceptsWhy are bodies of water so calming? more

Oil companies contaminated a family farm. The courts and regulators let the drillers walk away.

The oil and gas industry has reaped profits without ensuring there will be money to plug and clean up their wells. In Oklahoma, that work could cost more than $7 more

UK rail faces fight to stay on track as climate crisis erodes routes

Britain’s railways are spending billions on bolstering the tracks against geological movements caused by extreme weather. But technology and new infrastructure will not save every serviceUnder the chalk cliffs east more

On Feb. 29, Cody Roberts was out hunting on his snowmobile in Wyoming when he crossed paths with a lone gray wolf in the state’s “predator zone,” where wolves can more

Eats shoots and leaves: the problems with pests

The flowers are blooming and everyone’s loving the first signs of warmer weather in the garden, especially the birds and slugsGardening ups and downs! One warmer May morning I arrive more

As fossil fuel plants face retirement, a Puerto Rico community pushes for rooftop solar

Land for large solar arrays is limited on the island. Rooftop panels can provide electricity during blackouts and bring the island closer to its clean energy goals. more

LONDON, Ohio—Mark Forrest had a choice: Save his political career or continue to support a solar power project that he saw as an economic bonanza for his Ohio county. He more

Water firm criticised over 'scary' outbreak

A caretaker from Brixham says it is "probably the worst ailment" he has had in his adult life. more

The Bureau of Land Management announced Thursday that it would no longer make federally managed lands in Wyoming’s Powder River Basin available for new coal mining leases, drawing condemnation from more

From our collaborating partner “Living on Earth,” public radio’s environmental news magazine, an interview with Bob Bewyn, a staff writer at Inside Climate News, based in Austria.  Many of the more

More Northern Lights soon as Sun storms strengthen

Another spectacular light show could come within two weeks as Sun storms reach 11-year high. more

For drought relief, Cordilleran women in the Philippines rely on seed saving

BENGUET, Philippines — Anita Sinakay grew up with her farmer parents saving seeds, a practice she continues now that she has her own farm. Today, Sinakay heads the Benguet Association more

The new American Climate Corps is hiring: A disaster recovery leader to help communities rebuild after major storms in New Orleans. A Ridgerunner in southern New England to hike the more

To renew or not to renew? African nations reconsider EU fishing deals

Senegal now faces a decision it’s faced before. In the mid-2000s, small-scale fishers there mobilized in opposition to a fishing agreement with the European Union that allowed in many dozens more

A new study reveals the extent to which airborne dust in the Southern Ocean is fueling plankton blooms that absorb our emissions.Read more on E360 → more

Photos confirm narcotraffickers operating in Peru’s Kakataibo Indigenous Reserve

A wide strip of land cuts through the dense Amazon canopy in Peru’s Kakataibo Indigenous Reserve as shown by a photograph taken during a flyover on March 15, 2024. The more

Ruth Ann Norton used to look forward to seeing the blue flame that danced on the burners of her gas stove. At one time, she says, she would have sworn more

The Midwest is emerging as a major manufacturing hub for the clean energy transition as federal incentives and falling prices for renewables spur companies to invest tens of billions of more

Vermont passed a bill making Big Oil pay. Now comes the hard part.

The state still has to figure out how much individual fossil fuel companies must pay for the impacts of climate-driven disasters. more

Lumbee scientist Ryan Emanuel on seeking home, and climate justice, in "On the Swamp: Fighting for Indigenous Environmental Justice." more

Week in wildlife – in pictures: amorous frogs, battling stallions and an overaffectionate jaguar

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

Nature, Published online: 17 May 2024; doi:10.1038/d41586-024-01478-7Cognitive scientist who boldly explored free will, the human mind and AI, and rejected the existence of God. more

Nature, Published online: 17 May 2024; doi:10.1038/d41586-024-01416-7The H5N1 virus is a long way from becoming adapted to humans, but limited testing and tracking mean we could miss danger signs. more

Nature, Published online: 17 May 2024; doi:10.1038/s41586-024-07565-zAuthor Correction: Quantum control of a cat qubit with bit-flip times exceeding ten seconds more

Nature, Published online: 17 May 2024; doi:10.1038/d41586-024-01453-2As researchers mark the loss of the first living recipient of a pig kidney, they share what they’ve learnt about xenotransplantation. more

Nature, Published online: 17 May 2024; doi:10.1038/s41586-024-07494-xAuthor Correction: A small and vigorous black hole in the early Universe more

Nature, Published online: 17 May 2024; doi:10.1038/d41586-024-01485-8Remains of an ancient branch of the Nile River hint at why Egyptians chose to build at Giza. Plus, how a ‘tactical sacrifice’ can more

Nature, Published online: 17 May 2024; doi:10.1038/d41586-024-01396-8Applicants whose essays had broader ‘semantic content’ tended to achieve higher marks. more

Nature, Published online: 17 May 2024; doi:10.1038/d41586-024-01398-6A gel made from a milk protein reduces alcohol levels in the blood of intoxicated mice. more

Nature, Published online: 17 May 2024; doi:10.1038/d41586-024-01450-5Andrew Robinson reviews five of the best science picks. more

Nature, Published online: 17 May 2024; doi:10.1038/d41586-024-01364-2Propionic acidaemia is an inheirited metabolic condition caused by a lack of a liver enzyme, which leads to accumulation of toxic compounds. In a more

While Floridians suffered through record heat, DeSantis signed legislation keeping "windmills off our beaches." more

Canadian wildfire smoke just blanketed the Midwest — again

"You could definitely see the smoke outside, you could smell it, you could even taste it." more

Swallow, swift and house martin populations have nearly halved, finds UK bird survey

Reduction in insect numbers contributes to drop, and there are declines across more than a third of bird species surveyedSwallows, swifts and house martins were once a common sight over more

Bird populations are mysteriously declining at an Amazon park in Ecuador & beyond

The number of individual birds found at the Yasuní Biosphere Reserve has dropped by half, according to a study published earlier this year. more

Gone from Romania for 200 years, European bison were reintroduced to the Țarcu Mountains, at the southern end of the Carpathian range, in 2014. Now numbering 170, the bison are more

Canada oil sands air pollution 20-64 times worse than industry says: Study

Air pollution levels over Alberta’s tar sands are many times higher than industry-reported figures, according to researchers, raising questions over potential health risks to downwind Indigenous communities. more

Undercover in a shark fin trafficking ring: Interview with wildlife crime fighter Andrea Crosta

This story was supported by the Pulitzer Center’s Ocean Reporting Network, where Philip Jacobson is a fellow. Four years of investigating jaguar parts trafficking rings in Latin America led Andrea more

The American Climate Corps will get people into green jobs. Can it help their mental health too?

Most young people aren’t sure how to take action. Biden’s program could provide much-needed structure. more

How ‘kitty cats’ are wrecking the home insurance industry

Supercharged thunderstorms and tornadoes are ravaging the Midwest, driving insurance costs to record highs. more

The search for the perfect wetsuit: is there one that doesn’t harm the planet?

Neoprene is made from toxic chemicals, hard to recycle and, with 400,000 tonnes made a year, a growing problem. So can surfers and swimmers find green wetsuits?I have been hesitating more

Pacific squid flashes its huge attack 'headlights'

Watch video of the super-fast Dana squid as it flashes its immense light-emitting organs. more

Hydrogen, solar and batteries – did the 2024 federal budget deliver on clean economy investment? | Tennant Reed

Labor’s Future Made in Australia policy has enough money to move the needle. What matters is implementation – and readiness to adjust course if neededGet our morning and afternoon news more

Nature, Published online: 16 May 2024; doi:10.1038/d41586-024-01449-yGeological survey reveals the remains of a major waterway that ancient Egyptian builders could have used to transport materials. more

Nature, Published online: 16 May 2024; doi:10.1038/d41586-024-01473-yThree research teams each created quantum-entangled states over several kilometres of existing optical fibres in real urban areas. Plus, lizard-inspired buildings could save lives more

Nature, Published online: 16 May 2024; doi:10.1038/d41586-024-01460-3Some scientists think the decision regarding EcoHealth Alliance is fair; others say it might negatively affect virus surveillance. more

Nature, Published online: 16 May 2024; doi:10.1038/d41586-024-01443-4Scientists know there is a link between obesity and some cancers. A study in mice and people suggests why that might be. more

Tackling climate change in one of Colombia’s largest wetlands

The time it takes to cross the Ayapel swamp, the largest swamp in the department of Córdoba, northern Colombia, is a good measurement of how much this landscape has changed more

Twilight zone fishing: Can we fish the ocean’s mesopelagic layer?

Two hundred meters below the surface of the sea is a cold, faintly lit layer of water known as the mesopelagic, or twilight, zone. Here lives a menagerie of peculiar-looking more

Scientists solve mystery of ancient 'tree of life'

The iconic trees evolved on Madagascar 21 million years ago and later spread to other countries. more

‘Weather whiplash’ cycles of floods & droughts imperil Nigerian farming

Growers in Nigeria are suffering huge losses due to a disruption of farming seasons caused by unusual and extreme weather conditions. Mallika Nocco, an assistant professor and extension specialist in more

As miner quells protests in Ecuador, Canadian firms’ rights record faces scrutiny

Violent crackdowns by Ecuadorian security forces on antimining protesters there have highlighted the outsize role that Canadian mining companies play in human rights abuses in other countries, and the failure more

NZ funding helps Indigenous farmers in Indonesia protect forests, boost incomes

JAKARTA — Funding from the New Zealand government is helping Indigenous farmers in Indonesian Borneo improve their livelihoods while protecting their ancestral forests. The funding, channeled through the Farmers For more

Canada wildfires: huge queues on highway as thousands evacuate oil town – video

Footage on social media showed roads full of cars evacuating the suburbs of Fort McMurray in the western Canadian province of Alberta. A growing blaze threatened the city and its more

New database unveils the role of Asian hornbills as forest seed dispersers

Biologists have long known hornbills are supreme long-distance seed dispersers. The iconic forest birds are capable of transporting tree seeds over vast distances — up to 10 kilometers, or 6 more

Extractive industries look at degraded land to avoid further deforestation in the Pan Amazon

Mining and energy companies invest in the Amazon because it is profitable. Opportunities are large because of geology, but development is costly due to the region’s isolation and lack of more

An ancient Indigenous lagoon system brings water back to a dry town in Ecuador

There’s a legend that says the hill of Cerro Pisaca — female — and the hill of Cerro Cango — male — had a bull as a son that, in more

Venezuela’s shrimp farms push for sustainability against hardship and oil spills

Most of Venezuela’s shrimp farms sit on the eastern shore of Lake Maracaibo, a brackish lagoon covering an area larger than the island of Sicily in the country’s northwest. This more

The 1.5C global heating target was always a dream, but its demise doesn't signal doom for climate action | Bill McKibben

Missing a target doesn’t mean the sense of emergency should fade. What it must do is stop politicians dithering – and fastI remember the first time I heard the 1.5C more

Four kids left: The Thai school swallowed by the sea – video

Ban Khun Samut Chin, a coastal village in Samut Prakan province, Thailand, has been slowly swallowed by the sea over the past few decades. This has led to the relocation more

How do you follow My Octopus Teacher? With crocodiles, otters and a new book

Oscar-winning film-maker Craig Foster on his first octopus encounter, the price of fame and his new video book about the power of connecting with animalsWhen the film My Octopus Teacher more

Setback for Guinea mine that threatens World Heritage chimp reserve

A major iron mining project in eastern Guinea may be at risk as its owner, the U.S. firm HPX, is reportedly running into trouble with its plans to ship ore more

Herd of 170 bison could help store CO2 equivalent of 43,000 cars, researchers say

Free-roaming animals reintroduced in Romania’s Țarcu mountains are stimulating plant growth and securing carbon stored in the soil while grazingA herd of 170 bison reintroduced to Romania’s Țarcu mountains could more

Inside a California oil town’s divisive plan to survive the energy transition

Kern County is betting on carbon capture to replace oil jobs and tax revenue. But will the county’s new economy repeat the sins of the old one? more

Tribes could lease their water to dry states. Why is it so hard?

The Colorado River Indian Tribes can now lease water to non-Indigenous users along the drought-stricken river. Most nations can’t do the same. more

Researchers and companies are aiming to draw key minerals, including lithium and magnesium, from ocean water, desalination plant residue, and industrial waste brine. They say their processes will use less more

On a Borneo mountainside, Indigenous Dayak women hold fire and defend forest

KAMBIAYIN, Indonesia — Eka Karlina repeats a mantra to her Dayak Pitap ancestors as she runs her fingers through the soil, combing the field in Kambiayin village for weeds. “Hopefully more

UK's puffin protection laws at centre of post Brexit row

The endangered puffin - one of Britain’s most iconic seabirds - is at the centre of a battle over the UK’s post Brexit freedoms. more

Nature, Published online: 15 May 2024; doi:10.1038/d41586-024-01433-6Test of weight-loss candidate in mice shows that there is still room for improvement in a burgeoning field. more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07425-wDelay- and choice-related activities that are essential for working-memory performance drift during learning and stabilize only after several days of expert performance. more

Nature, Published online: 15 May 2024; doi:10.1038/d41586-024-01405-wGuided by the light. more

Nature, Published online: 15 May 2024; doi:10.1038/d41586-024-01356-2Both parents of oldfield mice care for offspring, whereas in deer mice, mothers usually care for pups. The discovery of a type of adrenal-gland more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07437-6Cryo-electron microscopy structures of the noradrenaline transporter in the apo state, bound to noradrenaline and bound to various antidepressants shed light on the substrate more

Nature, Published online: 15 May 2024; doi:10.1038/d41586-024-01445-2Experiments generate quantum entanglement over optical fibres across three real cities, marking progress towards networks that could have revolutionary applications. more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07422-zAn approach called wavefunction matching transforms particle interactions so that their wavefunctions match those of easily computable interactions, to allow for calculations of quantum more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07419-8Unimolecular integration of NMDA receptor antagonism with GLP-1 receptor agonism effectively reverses obesity, hyperglycaemia and dyslipidaemia in rodent models of metabolic disease. more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07400-5A previously undescribed photocatalytic approach enables the effective p-type and n-type doping of organic semiconductors at room temperature using only widely available weak dopants more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07302-6This Review discusses the importance of genetic and non-genetic reprogramming events during the metastatic cascade. more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07308-0A metropolitan-area quantum network based on the generation of pairwise entanglement is formed by three atomic quantum memories connected to a central photonic server. more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07447-4We carried out genomic and ecological analyses of all eight extant baobab species, providing insights into their evolutionary history and recommendations for conservation efforts. more

Nature, Published online: 15 May 2024; doi:10.1038/d41586-024-01411-yRich nations’ fixation on forests as climate offsets has resulted in the needs of those who live in or make a living from these more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07390-4We report on a method for inducing uncontaminated and precise inhomogeneous strain in nanoscale silicon ribbons and its use for determining physical effects in more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07436-7A temperature-dependent Ca2+-binding site in the intracellular domain of TRPM4 is essential for TRPM4 function in physiological contexts. more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07431-yWe observe the superconducting diode effect and interference patterns in CsV3Sb5, implying a time-reversal symmetry-breaking superconducting order in kagome superconductors. more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07424-xTWA1 is a temperature-sensing transcriptional co-regulator that is needed for basal and acquired thermotolerance in Arabidopsis thaliana. more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07418-9The ubiquitin E3 ligase OsCIE1 acts as a brake to inhibit OsCERK1 during homeostasis; this brake is released after chitin stimulation. more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07399-9A photopolymer platform derived from renewable lipoates can be 3D-printed into high-resolution parts, which possess properties comparable to some commercial acrylic resins, and then more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07366-4Nitrate observations over 11 years from autonomous biogeochemical ocean profiling combined with a Southern Hemisphere dust simulation find that iron supplied by dust supports about more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07268-5A design approach arrests collapse propagation in buildings after major initial failures by ensuring that specific elements fail before the failure of the most more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07398-wBy combining spatial and frequency dispersive thin-film interfaces with deep residual learning, a miniature photodetector allowing the acquisition of high-dimensional information on light in more

Nature, Published online: 15 May 2024; doi:10.1038/d41586-024-01370-4Researchers are using new molecules, engineered immune cells and gene therapy to kill senescent cells and treat age-related diseases. more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07252-zEntanglement of two nanophotonic quantum network nodes is demonstrated through 40  km spools of low-loss fibre and a 35-km long fibre loop deployed in the more

Nature, Published online: 15 May 2024; doi:10.1038/d41586-024-01437-2Researchers frequently receive invitations to publish in journals that they might not have heard of. Nature asked two scientists how they would check whether more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07443-8Combination of TCR or CAR T cells expressing the engineered CD47 variant 47E with anti-CD47 antibody therapy results in synergistic antitumour efficacy due to more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07423-yThe adrenal gland of the oldfield mouse (Peromyscus polionotus) has a recently evolved cell type that promotes monogamous-typical parenting behaviour and is not present more

Nature, Published online: 15 May 2024; doi:10.1038/d41586-024-01448-zHow knocking down a building helped researchers design a safer structure, and a sustainable 3D printing resin made from a bodybuilding supplement. more

Nature, Published online: 15 May 2024; doi:10.1038/d41586-024-01384-yNew design - inspired by lizard tails - could save lives by isolating collapsing sections of damaged buildings more

Nature, Published online: 15 May 2024; doi:10.1038/d41586-024-01372-2The data are clear: taking sex and gender into account in research and using that knowledge to change health care could benefit billions of more

Nature, Published online: 15 May 2024; doi:10.1038/d41586-024-01397-7Combining a brain organoid with a blood-vessel organoid yields a system similar to a protective mesh in the brain. more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07349-5We examined how familiar faces are encoded in inferotemporal, perirhinal and temporal pole face patches, and found that relative response magnitude to familiar versus more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07535-5Publisher Correction: Ghost roads and the destruction of Asia-Pacific tropical forests more

Nature, Published online: 15 May 2024; doi:10.1038/d41586-024-01143-zA design principle for buildings incorporates components that can control the propagation of failure by isolating parts of the structure as they fail — more

Nature, Published online: 15 May 2024; doi:10.1038/d41586-024-01352-6A two-in-one drug that modulates neural pathways involved in appetite and reward might prove to be more effective and longer lasting than current weight-loss more

Nature, Published online: 15 May 2024; doi:10.1038/s41586-024-07539-1Imprinting of serum neutralizing antibodies by Wuhan-1 mRNA vaccines more

Nature, Published online: 15 May 2024; doi:10.1038/d41586-024-01458-xMathematical conjectures could be the ideal testing ground for AI-assisted discovery. Plus, why humans are so good at running and how to kill ‘zombie’ more

Will a billionaire bankroll biodiversity? CBD Decision 15/9 as potential ‘goldmine’ (commentary)

Economic metaphors can be ironic, unexpectedly so. The 15th Conference of the Parties (COP15) to the 1992 UN Convention on Biological Diversity (CBD) established a “multilateral mechanism for benefit-sharing from more

The illicit trade with China fuelling Mozambique's insurgency

Illegal shipments of rosewood continue and some of the profit ends up with jihadists, research says. more

Environmental defenders paid the price during Panama’s historic mining protests – report

Panama is still trying to understand the extent of the violence that took place during the massive, nationwide protests last year. Groups from all corners of the country, from teacher more

The regulation requires grid operators to develop plans to build out the transmission needed to deliver on Biden’s climate agenda. more

Shade-grown coffee benefits birds, forests & people in Venezuela

Each morning, as Luis Arrieta heads out to begin work on his shade-grown coffee farm, vindication comes in the form of birdsong gushing from the trees, a cacophony of trills more

The summer of 2023 was the hottest summer in the Northern Hemisphere since the height of the Roman Empire, a new study finds.Read more on E360 → more

Grist acquires The Counter and launches food and agriculture vertical

Two new reporters will lead the organization's agriculture coverage. more

A note from Grist's CEO. more

Can electric woks produce great stir-fry?

Many chefs are asking what a future without gas will mean for culinary traditions like wok cooking. more

Can the harsh conditions of space breed more resistant crops for Earth?

To make crops resilient to climate change, scientists are exposing seeds to cosmic radiation, extreme temperatures, and low gravity. more

Nature, Published online: 14 May 2024; doi:10.1038/d41586-024-01420-xInterpersonal therapy can be an effective tool against the devastating effects of loneliness more

Nature, Published online: 14 May 2024; doi:10.1038/d41586-024-01371-3An exploration of the evolution of male nurturing shows why, unlike fathers among other great apes, human dads are biologically wired to be hands-on more

Nature, Published online: 14 May 2024; doi:10.1038/d41586-024-01314-yResearchers are striving to reverse-engineer artificial intelligence and scan the ‘brains’ of LLMs to see what they are doing, how and why. more

Nature, Published online: 14 May 2024; doi:10.1038/d41586-024-01419-4Inequality is bad — but that doesn’t mean the rich are 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



May 2024

Mushroom Foraging Walk with Wildman Steve Brill
1:00 pm - 4:00 pm
Saturday May 4, 2024 at 1PM , ...
Monthly Nature Center Meeting
7:30 pm - 8:40 pm
Monthly meeting is open to all members at the Demarest Train Station. If you are not a member come join us today! , ...
Bergen County Audubon Society’s Spring Bird Count
10:00 am - 12:00 pm
Bergen County Audubon Society’s Spring Bird Count Time: 10AM Location: At the DNC – Imagination Playground (Wakelee Field) , ...
Environmental Scholarship Entries Due
12:00 am - 11:55 pm
Note: Environmental Scholarship date will be announced later. , ...

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.


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Demarest Nature Center
Box 41
Demarest, NJ 07627


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