Reptiles

The cat-eyed snake slithers in the Peruvian Amazon.

A Serpentine 'Explosion' 125 Million Years Ago Primed Snakes for Rapid, Diverse Evolution

Researchers say an evolutionary "singularity" led to several small, quick changes in snake species, from legless bodies and flexible skulls to chemical-sensing abilities

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

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

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

David Attenborough stands next to the recently discovered pliosaur fossil at the Etches Collection Museum of Jurassic Marine Life in Kimmeridge, England.

Fossil Hunters Uncover Prehistoric 'Sea Monster' Skull at a U.K. Beach

The six-and-a-half-foot-long pliosaur skull was excavated from a rock cliff in England and may belong to a new species, scientists say

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

The leucistic baby gator is happy and healthy, veterinarians say.

Rare White Alligator Born at Florida Wildlife Park

The baby gator, which doesn't have a name yet, was born with leucism, a condition that affects pigmentation

Jonathan the tortoise in 2017

The World's Oldest Living Land Animal, a Tortoise Named Jonathan, Turns 191

Even at his advanced age, the Seychelles giant tortoise shows “no sign of slowing down,” his vet tells Guinness World Records

An Indian cobra found in the farmlands of Kanchipuram, India. The country has the highest rate of snakebite deaths in the world.

An Inside Look at the Effort to Curb Deadly Snakebites in India

With around 58,000 human deaths from snakebites each year in the country, a lot more must be done to save lives

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

A captive breeding program has seen the return of Galápagos giant tortoises to Española in the Galápagos Islands. As the tortoise population rebounds, the island ecosystem is in the process of transforming.

Galápagos Giant Tortoises Are Ecosystem Engineers

A decades-long project shows how the reptiles are changing the island of Española

A zoo employee weighs a meerkat during the annual weigh-in.

London Zoo Weighs All 14,000 of Its Animals, 'From the Tallest Giraffe to the Tiniest Tadpole'

The annual measurements help zookeepers track each animal's health over time

Shells of turtles and tortoises can accumulate uranium isotopes.

Turtle Shells Keep a Record of Humans' Nuclear History

Scientists can measure uranium isotopes in tortoise and turtle shells to understand the environmental impact of past nuclear events, a new study reports

The Crystal Palace Dinosaurs are the world’s first attempt to model prehistoric animals at full scale.

How a Victorian Dinosaur Park Became a Time Capsule of Early Paleontology

A new sculpture and an upcoming restoration are breathing life into the Crystal Palace Dinosaurs, one of 19th-century Britain’s most curious creations

The snake's new enclosure is specially designed to help the creature avoid hurting itself.

A Rare Two-Headed Snake Is Back on Exhibit at a Texas Zoo

Pancho and Lefty, as the western rat snake is known, has now healed from an injury it suffered more than two years ago

Fossilized poop, called coprolites, collected in Nong Yakong village, Chaiyaphum Province, Thailand. Coprolites are an important source for studying ancient parasites.

200-Million-Year-Old Poop Reveals Parasites That Infected a Crocodile-Like Reptile

The prehistoric fossil could help researchers understand the relationships between parasites and host organisms in the Late Triassic

As one Nile crocodile rests, another perks up near a river in Tanzania.

Nile Crocodiles Recognize and React to the Sound of Crying Babies

The reptiles may be aware that primate infants are in trouble—and an easy meal

A southern Pacific rattlesnake. Previous studies had found examples of companionship reducing stress in birds and mammals, but not reptiles.

Having a Companion Could Help Rattlesnakes Stay Calm

During a stressful event, snakes experienced a smaller spike in heart rate when they were in the presence of another snake, according to a new study

A nesting Hawaiian green sea turtle, or honu in Hawaiian, struggles while trapped in a hole in the sea wall on Tern Island in 2014. This female was rescued, but in 2021 at least seven females died after being trapped on the island.

The Lonely Battle to Save Species on a Tiny Speck in the Pacific

As Tern Island, a former military outpost in the Hawaiian archipelago, falls apart and harms turtles, birds, seals and more, scientists wonder what’s next

An illustration of the Victorian grassland earless dragon, which, until February, had not been seen in the wild since 1969.

Scientists Find the 'Extinct' Victorian Earless Dragon, Not Seen Since 1969

Once thought to be gone from the wild, the lizards will now enter a breeding program in an attempt to save them from the brink of extinction

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