Endangered Species

Female northern white rhinos Najin and Fatu are the last of their species and reside at the Ol Pejeta Conservancy in Kenya.

World's First IVF Rhino Pregnancy Could Save a Nearly Extinct Subspecies

Only two northern white rhinos remain, but the new reproductive breakthrough may pull them back from the brink of erasure

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

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"

A leatherback turtle returns to the sea after nesting. Females spend three to five months at a time nesting, laying eggs for periods of about nine days.

Should Endangered Turtles Have Legal Rights?

To protect the majestic reptiles around the isthmus of Panama, an ambitious conservation group digs deep both on and off the beach

A critically endangered kākāpō rests in a tree.

Inside New Zealand’s Quest to Save Its Rotund, Flightless Parrots

Researchers are slowly restoring the endangered kākāpō using DNA sequencing, GPS tracking and tailored diets

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

Cats are not picky and will eat nearly anything they can catch.

Cats Prey on More Than 2,000 Different Species

A new study sheds light on just how many creatures domestic cats will eat—including hundreds that are threatened or endangered

More than 200 cold-stunned turtles have already been rescued since November.

52 Cold-Stunned Kemp's Ridley Sea Turtles Rescued From Cape Cod

The critically endangered creatures were flown by private plane to rehabilitation centers in Florida

Our ten favorite science books of the year covered everything from astronomy to undersea exploration.

The Ten Best Science Books of 2023

From stories on the depths of the ocean to the stars in the sky, these are the works that moved us the most this year

A De Winton's golden mole. A member of the species hadn't been definitely seen since 1936.

Scientists Uncover a Golden Mole Species Thought to Be 'Possibly Extinct'

A scent-detecting dog led the team to the discovery in South Africa, and traces of mole DNA helped confirm it

Wolverines live in snowy, high-elevation habitats.

Wolverines Receive Federal Protection as a Threatened Species in the Lower 48 States

The carnivorous mammals will increasingly face habitat loss and fragmentation because of climate change, according to scientists

The horned marsupial frog, which carries its eggs in a pouch on its back, lives in the canopy of tropical rainforests.

The Surprise Reappearance of a Rare Frog Has Scientists Leaping to Protect Its Habitat

The marsupial frog, which incubates its young in a pouch on its back, was thought to be extinct in some countries

Green sea turtles are struggling because of climate change, habitat destruction, erosion and other threats.

Metal Pollution May Be Making More Green Sea Turtles Female

In addition to warming temperatures, new research finds contaminants might contribute to the endangered reptiles' skewed sex ratios

Attenborough's long-beaked echidna, photographed by a camera trap

Scientists Find 'Lost' Echidna Species for the First Time in 60 Years

An expedition team in Indonesia spotted the elusive, egg-laying mammal, which is named after David Attenborough and had not been documented since 1961

North Atlantic right whales face threats of entanglement in fishing gear and injuries caused by ships.

North Atlantic Right Whale Numbers May Be Stabilizing at Last

After a decade of decline, the latest population estimate is good news—but conservationists say we "have a long ways to go" to safeguard the marine mammals

Neurergus kaiseri, also called Luristan newt, is listed as vulnerable on the International Union for Conservation of Nature's Red List of Threatened Species. 

Amphibians Are in Decline Across the Globe

About 41 percent of all species across the planet meet IUCN criteria for classification as critically endangered, endangered or vulnerable

California condors are attracted to shiny things and sometimes ingest wrappers, coins and padlock keys.

'Love Locks' at the Grand Canyon Could Be Harming Endangered California Condors

Park service officials urged visitors to stop attaching padlocks to fences and throwing keys into the canyon below, where the birds could eat them

A killer whale in the Salish Sea is observed harassing a porpoise.

Why Do Orcas Keep Harassing Porpoises?

An endangered group of killer whales in the Pacific Northwest has been toying with porpoises for decades—and new research offers some possible explanations

Rafflesia kemumu in the rainforest of Sumatra.

The World's Largest and Smelliest Flower Is at Risk of Extinction, Scientists Say

Researchers are calling for urgent protections for corpse flowers in the Rafflesia genus, which live only in remote rainforests of Southeast Asia

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