Animals

A group of grey reef sharks and blacktip reef sharks at La Vallée Blanche in French Polynesia in 2018.

Sharks Are Being Killed at Rising Rates Despite Increased Regulations

Global bans on finning have inadvertently opened up shark meat markets, prompting demand for threatened species, a new study reveals

A female elephant seal rests with her pup on the California coast. Pups in this population spend more days fattening up on mother’s milk than in southern populations on the Kerguelen Islands.

Inside Elephant Seal Pups' Race to the Depths

While northern pups dive right in, their southern cousins take their time

An artist's impression of Gigantopithecus blacki near a forest in southern China.

What Caused the Mysterious Extinction of 'Giganto,' the World's Largest Ape?

The massive primates were unable to shift their diet to keep pace with a changing climate, according to a new study, forcing them to eat less nutritious bark and twigs

The earliest known fossil of epidermis was preserved due to unique circumstances.

This 288-Million-Year-Old Fossilized Scrap of Skin Is the World's Oldest

The remains, found in an Oklahoma cave, belonged to a lizard-like reptile

Barred owls are bigger, faster to reproduce and less picky about food and habitat.

Can Killing One Species of Owl Help Save Another?

Biologists and conservationists are grappling with a controversial plan to kill 470,000 barred owls in the Pacific Northwest over the next 30 years

Gaia is still getting comfortable in her new environment.

See the 'Adorable'—and Deadly—Black-Footed Cat at a Utah Zoo

Eight-month-old Gaia is part of a breeding program for her vulnerable species, which is considered the "world's deadliest cat"

These fossilized teeth belonged to a Propliopithecus chirobates, a type of early primate that lived between 29 million and 35 million years ago.

Early Primates May Have Feasted on Soft, Sweet Fruits

An analysis of more than 400 fossilized teeth suggests the creatures weren't eating many seeds, nuts or other hard foods

A turtle appears to smile as a dragonfly alights on its nose.

See 25 Breathtaking Images From the Wildlife Photographer of the Year Contest

Representing some of the world's best nature photography, the pictures are being put to a popular vote for the People's Choice Award

Hercules measures 7.9 centimeters from foot to foot, making him larger than a baseball.

Meet 'Hercules,' the Largest Male Funnel-Web Spider Ever Found

Despite belonging to the most venomous arachnid species on Earth, the spider will be using his bite for good in a program to produce antivenom

An illustration of Nanotyrannus attacking a juvenile T. rex

Decades-Long Debate on 'Teenage' Tyrannosaur Fossils Takes Another Turn

A new paper adds to evidence suggesting a group of disputed fossils, identified by many scientists as young T. rex, are actually another species

This year was marked by many broken records in the ocean.

The Top Ten Ocean Stories of 2023

Major discoveries, an undersea tragedy and international cooperation were some of the biggest saltwater moments of the year

Monarch butterflies' signature white spots could help them fly—and inspire better drones.

Seven Scientific Discoveries From 2023 That Could Lead to New Inventions

Biologists learned lots about animals and plants this year, and their findings could inspire better robots, medicine and environmental technologies

While they chew their cud, reindeer brains shift into a state of non-REM sleep.

Reindeer Sleep and Eat Simultaneously, Saving Precious Time in the Short Arctic Summer

While the animals chew their cud, they also enter a state of rest

Humans may perceive dogs with dark eyes as younger and more friendly, according to new research.

Here's Why Most Dogs Have Brown Eyes

Humans may have bred their canine companions to have darker eyes, because we perceive them as younger and more friendly, study finds

This A.I.-generated illustration shows what some of the undiscovered extinct birds might have looked like.

Humans May Have Driven Twice as Many Bird Species to Extinction as Previously Thought

Statistical modeling of undiscovered extinctions suggests 1,430 bird species have disappeared during modern human history

Advances in artificial intelligence and dinosaur discoveries were just some of the major science stories this year.

The Ten Most Significant Science Stories of 2023

From an asteroid sample that was delivered to Earth to a discovery about human migration from North America, these were the biggest moments of the year

Chimpanzees and bonobos may have the longest social memory of any non-human animal.

Chimpanzees and Bonobos May Remember Faces for More Than 20 Years

The great apes, which are humans' closest living relatives, appeared to recognize photos of their former acquaintances in a study, even decades later

Seabirds, such as puffins, have a well-earned reputation as sentinels of change in marine environments.

How Seabirds Can Help Us Predict the Size of Fish Stocks

The scientists who study terns, puffins and other birds are trying to get fisheries managers to heed their warnings

Cats can fetch—but they prefer to be in control of the playtime.

Like Dogs, Some Cats Will Play Fetch—but Mostly on Their Own Terms

Many felines appear to pick up the playful behavior spontaneously, without any explicit training, a survey of cat owners finds

A bilaterally gynandromorphic green honeycreeper near Manizales, Colombia. 

This 'Extremely Rare' Bird Is Half Female, Half Male

The green honeycreeper is only the second of its species ever observed with this condition—and the first recorded in more than 100 years

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