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Animals

A microscope image of tissue taken from a sea cucumber. The green coloring indicates cellular activity.

Scientists Say They’ve Discovered ‘Little Lab Zombies’—Seemingly Immortal Tissue Taken From Sea Cucumbers

Chunks removed from the marine creatures more than three years ago haven’t degraded and show signs of biological activity, raising questions about what it means to be alive

After being declared extinct in the wild in the 1960s, Przewalski's horses are slowly making a comeback.

‘Playful Youngster’: See the Rare, Endangered Przewalski’s Horse Born at the Bronx Zoo

The foal was born on April 21 and is now romping around with the rest of the herd in the zoo’s seasonal Wild Asia Monorail exhibit. It belongs to a species whose members are often considered the last truly wild horses

A mosquito drinking blood from a bag, accessible through mesh

Could Bug Spray Attract Mosquitoes? Lab Insects Learned That the Smell of DEET Would Lead Them to a Tasty Treat

Researchers don’t know how the findings might overlap with real-world settings. But the discovery suggests that we’re most vulnerable when our insect repellent is wearing off, meaning we should reapply it regularly

A sihek, or Guam kingfisher, chick born at the Smithsonian's National Zoo and Conservation Biology Institute

Four Rare Guam Kingfisher Chicks Hatch at Virginia Facility, Making an ‘Incredibly Valuable’ Addition to the Small Population of Extinct-in-the-Wild Birds

The species, also known as the sihek, was wiped out from its native Guam and kept alive in captivity. Conservationists released some birds on Palmyra Atoll in 2024, and they have been thriving so far

Partial view of Eurasian blackbird, Missy Dunaway, acrylic ink on paper

Shakespeare Referenced Dozens of Bird Species in His Work. This Artist Has Made It Her Mission to Paint Them All

Missy Dunaway’s colorful illustrations combine natural history, folklore and literature to depict the Bard’s birds

Happy in her enclosure in 2022

Happy, an Asian Elephant Who Demonstrated That Her Species Might Be Self-Aware, Dies at 55 at the Bronx Zoo

In research reported about 20 years ago, Happy appeared to recognize herself in a mirror. She was later the subject of a failed lawsuit claiming that elephants should have certain fundamental human rights

A female blue crab with an acoustic telemetry tag on its shell. Scientists at the Smithsonian Environmental Research Center use telemetry tags to track the migration of blue crabs throughout the Chesapeake.

Young Blue Crabs Have Been Mysteriously Dwindling in the Chesapeake Bay for Years. This Winter, They Saw a Boost in Numbers. What’s Driving These Trends?

A recent report detailed a 50 percent drop in juvenile Chesapeake blue crabs since 2010. Then, a survey found a surprising surge in the young crustaceans this year

In February 2020, naturalist guides Lizardo Proaño and Juan Carlos Narváez photographed a harvestman eating a live frog during a night hike at Mashpi Lodge in Ecuador.

Daddy Longlegs Seem to Hunt Frogs in South America, Revealing the Gangly Arachnids as Overlooked Predators

A new study suggests that harvestmen actively attack the slippery amphibians, rather than just scavenging them. The findings hint that the spineless creatures have a more complex relationship with vertebrates than previously thought

Western Australia’s Ningaloo coast

Scientists Detect an Elusive Giant Squid and Many Other Surprising Marine Animals Near Western Australia Thanks to DNA in the Water

Mucus, feces, skin and other shed tissue allowed researchers to investigate which creatures have been swimming in two deep-sea canyons without having to observe or catch them

Human development—such as roads—affects wildlife. But so does the presence of people.

The Mere Presence of Humans—Not Just Our Changes to the Land—Can Alter Wild Animals’ Behaviors, a New Study Suggests

Researchers examined GPS tracking data from thousands of animals representing 37 species and anonymized cellphone location data from 2020, a year of Covid-19 lockdowns, and the previous year

The researchers studied four captive belugas housed at the New York Aquarium of the Wildlife Conservation Society.

Belugas Can Recognize Themselves in Mirrors, Joining a Short List of Nonhuman Species That Show Signs of Self-Awareness

The researchers hope that this new understanding of cognition in the toothed whales will increase human empathy and concern for the animals, leading to more efforts to protect them

Researchers found evidence of degenerative joint disease, trauma and other health problems.

Whalers Didn’t Just Sing Sea Shanties and Seek Adventure. Proof of Laborers’ Grueling Work Is in Their Skeletons, Buried in the Arctic

Remains buried on Svalbard show the brutal toll whaling took on men in the 17th and 18th centuries. Climate change threatens these kinds of archaeological sites across the Arctic

Mediterranean monk seals are among the rarest pinnipeds in the world.

Mediterranean Monk Seals Hide in Underwater ‘Bubble Caves’ to Avoid Tourists During the Busy Summer Season, a Study Suggests

Researchers caught the rare pinnipeds resting and sleeping in a secluded chamber on the Greek islet of Formicula. The findings suggest that these small caves should be included in efforts to protect the animals’ habitat

Gentoo penguins have been considered a rare beneficiary of climate change due to their population growth on the Antarctic Peninsula. Splitting the birds into four species brings to light regional threats and declines.

Gentoo Penguins Are Actually Four Different Species, Scientists Say, Revealing They’re Not Quite ‘Winners’ of Climate Change After All

A new study indicates that the adaptable birds evolved into distinct lineages as isolated populations shifted to match their environmental conditions over time. The work has implications for how conservationists assess threats to gentoos

Tuerkayana hirtipes, a true crab species examined in the study

When Did Crabs Evolve Their Iconic Sideways Scuttle? Scientists Traced It to a Common Ancestor That Lived 200 Million Years Ago

The findings suggest that their famous lateral movement evolved just once. It may have helped the animals rapidly spread and diversify because moving in two directions meant they could easily escape predators

The skeleton first emerged from an eroded road cut in 2000 or 2001.

Likely Kicked by a Kangaroo, This Dingo Healed a Millennium Ago Thanks to Help From an Aboriginal Community That Continued to Honor It for 500 Years

New research shows that the ancestors of the Barkindji people in Australia ritually added river mussel shells to a burial site for centuries after the dingo died, suggesting they cared for it deeply

A chick hatches around 18 days after embryo transfer to the artificial egg, according to the company.

‘De-Extinction’ Company Says It Hatched Chicks From Artificial Eggs, Paving the Way for Resurrecting Dodos and Other Bygone Birds

Colossal Biosciences announced that 26 live baby chickens have emerged from 3D-printed honeycomb structures. But the company does not plan to detail the system in a paper, and its mission has faced criticism

Each by-the-wind sailor is made of a community of genetically identical organisms called "zooids" that perform different tasks.

Millions of Bright Blue Blobs Called ‘By-the-Wind Sailors’ Are Littering Beaches Along the West Coast

The strange creatures are washing up on shores across California, Oregon and Washington this spring—and making the coast smell especially fishy

Artist's reconstruction of newly described koala species. 

A Dimpled Koala Fossil Found in a Cave in Western Australia Revealed Why This Previously Unknown Species Went Extinct

The new study found that they lost their arboreal habitat due to a drying climate, a dire warning for the modern-day marsupials that face a similar threat

In laboratory experiments, house crickets groomed an antenna that had been touched by a hot soldering iron.

Can Insects Feel Pain? New Research Suggests That Crickets Do

Used for food, feed and research, the critters are among the most widely farmed bugs. The study authors say humans should work to reduce harm in insect farming, handling and experimentation

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