Skip to main content

Subscribe to Smithsonian magazine and get a FREE tote.

Ecology

A tufted gray langur strokes a grizzled giant squirrel in Yala National Park, Sri Lanka.

Do Monkeys Keep Pets? Study Finds Widespread Primate Interactions With Other Animal Species, From Mice to Deer

This social behavior might reveal the evolutionary roots of traits that underlie pet-keeping in humans, scientists say, from caregiving to tolerance and curiosity. But it’s not the same as a person keeping a cat or a dog

An image of the reef

These Coral Reefs Off West Africa Were Long Presumed Dead. Scientists Just Found Them Alive and Teeming With Life

Fish surveys in the 1960s detected what experts thought was a dead coral reef barrier off the country of Benin. Decades later, researchers set off in small fishing boats to investigate it using sonar mapping, underwater drone surveys and stationary video recorders

Redback spiders live throughout Australia.

Here’s Why These Male Spiders Sacrifice Themselves by Somersaulting Into Females’ Fangs While Mating

A new study suggest that even strange, complex animal behaviors can have a relatively simple genetic basis

Mountain lions change how deer behave, potentially preventing deadly deer-vehicle accidents.

Pumas Might Be Making Your Drive Home Safer. When the Predators Are Around, Deer Tend to Avoid Roads, Preventing Some Collisions

In Washington’s Olympic Peninsula, the wild cats’ presence corresponded with a 67 percent drop in the likelihood of a deer-vehicle crash and a 76 percent overall decline in the number of wrecks during a five-year period, according to a new study

Screenshot of Jackie from a livestream in April

Jackie the Bald Eagle, Who Captured Hearts Around the World Via Livestream, Has Died After Battling a Mysterious Illness

A raptor center in California had been caring for the animal since mid-July, after she had an altercation with two young eagles. But she had probably been sick long before then

The small blue, shown here, has lost about 40 percent of its habitat in the United Kingdom over the last 150 years.

Butterflies Around the World Are Moving to New Habitats, Largely Because of Climate Change, a Study Suggests

Researchers examined data on 1,758 butterfly species—about ten percent of all those known—from 105 countries and estimated that about one in ten global species has shifted its distribution range

Sperm whales seem to communicate differently in the presence of underwater shipping sounds.

Sperm Whales Seem to Change Their Calls When Ships Are Near, Highlighting the Implications of Underwater Noise Pollution

Several of the huge cetaceans living in the eastern Caribbean Sea shortened the intervals between their clicks and used one click pattern more than another when vessels were around, according to a new study

The dominant female wolf of Yellowstone's Canyon pack on February 26, 2015

Rooted in the American West: Food, History and Culture

Yellowstone Is Among the World’s Best Places to See Wild Wolves. Here’s the Story of the Animal Called Both ‘Public Enemy’ and Cultural Icon

A century ago, resident wolves were eliminated from the park. In 1995, biologists brought them back, marking a historic reintroduction of a top carnivore

Of the estimated 899 species of ticks worldwide, about 90 are found in the continental U.S.; however, only four species are responsible for most of the infections found in the U.S. today.

The First At-Home Test for Infected Ticks Could Improve Lyme Disease Diagnosis

LymeAlert will hit the market in August. The latest tool against the tick-borne illness could become a medicine cabinet staple

A blacktip shark, above, looks and behaves like a spinner shark. Scientists are tracking spinner sharks to get a clearer idea of the species' whereabouts.

These Shark Look-Alikes Have Long Confounded Fishers and Scientists on the East Coast. Tracking Where They Migrate Could Help Clear the Confusion

Researchers are tagging and tracking spinner sharks to map out their geographic distribution, because they’ve seen that the range of the very similar blacktip shark has shifted

A catfish with melanoma, a kind of skin cancer

A Strange, Never-Before-Seen Cancer Seems to Be Spreading Among Catfish in a New England Lake

More than a decade ago, fishers and biologists noticed jet-black tumors on the skin of brown bullhead catfish in Lake Memphremagog. Genetic testing hints that they are caused by the first contagious cancer ever documented in fish

Experts attached a satellite transmitter to Pancake's shell, which will track its location for up to 90 days.

Good News

An Endangered Kemp’s Ridley Sea Turtle Named Pancake Makes a Triumphant Return to the Ocean After Months of Rehabilitation

The cold-stunned turtle was rescued last fall on Cape Cod and has since made a full recovery. The reptile, whose sex remains unknown, is estimated to be between 2 and 5 years old and weighed 11 pounds at the time of release

In the Sundarbans, the world's largest mangrove forest, a juvenile Bengal tiger steps from the shadows of mangroves into a tidal creek. This photo was highly commended in the mammals category.

Mangroves Are Key to Coastal Ecosystems. See 20 Breathtaking Photos That Reveal How the Trees Support Wildlife and Face Threats

The Mangrove Photography Awards honor images that show off the beauty—and the fragility—of these valuable intertidal forests

A pregnant naked mole-rat queen, on the left, and a worker, on the right, sniff each other.

Naked Mole-Rat Queens Emit a Special Scent to Stop Their Rivals From Reproducing, a New Study Suggests

The strange-looking creatures are one of two known mammals that use a social structure like that of bees and ants. A ruling rodent maintains power over her colony via one key chemical compound, according to new research

Koala conservation is a complex balancing act in Australia. In some regions, populations are in steep decline, but in others, the animals are overabundant.

Koalas Are at Risk of Extinction in Some Parts of Australia. Can Freezing Their Sperm and Eggs Help Save the Iconic Marsupials?

Scientists are preserving the animals’ reproductive cells in liquid nitrogen in a bid to boost genetic diversity in future populations

Commercial whalers hunted southern right whales to the brink of extinction. Though the species has rebounded, its recovery has been uneven.

Poop From Southern Right Whales Reveals That the Animals Might Be More Resilient to Climate Change Than We Thought

Scientists long believed that these whales, which swim throughout the Southern Hemisphere, mainly feasted on krill and small crustaceans called copepods, which are disappearing from the warming ocean. A new study suggests that the cetaceans have a more varied, flexible diet

Scientists first spotted the creatures in 2008.

Meet the Orange-Lipped ‘Likweli’ Monkey, a New Species That Was Discovered in the Congo Rainforest

The creatures, which weigh about the same as a small dog, have spiky black hair, orange-cream skin around their mouths and a white patch on their rear ends. Scientists say that they’re probably endangered

Dead and dying sea creatures have been washing ashore on beaches in South Australia over the past 15 months because of a toxic algal bloom.

The Culprit Behind South Australia’s Deadly Algal Bloom Might Be the Most Toxic Species Ever Tested, Scientists Say

Karenia cristata, a rare type of microscopic algae that produces toxins that harm nerve cells, can be lethal at very low concentrations

A moose called "Frank the Tank" in the Colorado mountains.

Are Moose Colorado Natives or Introduced Outsiders? New Research Suggests That the Animals Have Lived in the State for Centuries

Officials say moose weren’t established in the state until they were brought there in the late 1970s. But historical documentation and archaeological evidence indicate that they resided there long before that

The 1611 oil painting Air

Scientists Just Learned That This Bat Eats Birds Midflight. A Renaissance Painter May Have Known About It Hundreds of Years Ago

Last fall, scientists reported the first known recordings of greater noctule bats hunting and feasting on songbirds during night flights. But a 17th-century artwork by Jan Brueghel the Elder seems to depict the species flying with feathered prey in its mouth

Page 2 of 39