Reptiles
Researchers catch more than 100 swamp alligators in Georgia – and find something worrying in their blood
The discovery raises concerns for US wildlife, waterways and human health, according to a new study.
It has very strange feet, can change colour, has amazing panoramic vision and a very long tongue. Meet one of the world's weirdest animals
All you need to know about the amazing chameleons
Why do iguanas have three eyes?
The iguana's third eye is a useful way of detecting danger says Alex Morss
Jaw-dropping footage shows miraculous 'Jesus Christ lizard' avoiding becoming lunch by sprinting on water
By running at great speeds across water, the basilisk lizard avoids becoming prey – this BBC footage shows exactly how it does it.
Who would win in a fight between two of the world's most fearsome predators – a saltwater crocodile or a great white shark?
These deadly apex predators are at the top of their food chains – so who would win in a fight?
Which deadly snakes are able to crush and eat people?
Being killed and swallowed whole by a snake is the stuff of nightmares, but how likely is it? And what snakes are capable of it?
When scientists eradicated invasive bullfrogs from Yosemite National Park, an ancient creature returned
Northwestern pond turtles have made a remarkable comeback since the removal of American bullfrogs from the Californian national park, say researchers.
How the much-feared king cobras build their nests
Romulus Whitaker explains why and how the impressive king cobra snake build their nests
“They eat everything – anything that fits into their mouth”: how scientists solved a deadly issue in the deep valleys of Yosemite
Northwestern pond turtles are one of several native species making a comeback in the US national park thanks to the removal of invasive American bullfrogs, a new study has found.
Are there any crocodiles in the sea?
Saltwater crocodiles can tolerate seawater and have been found miles offshore, even though they’re not strong swimmers
“His wrist was gripped and ‘death-rolled’ three times”: Why conservationists in the Amazon are catching caimans
Studying caimans in the Amazon can help the species’ conservation – but you have to catch one first.
"Stunned" fossil hunters just found the oldest ever reptile footprints on a riverbank in Australia
The incredible discovery rewrites the history of when animals evolved to live on land, say experts.
Lethal lizards that can kill: Meet the world’s deadliest lizards
Lizards are armed with venom, muscle and a deadly bite. Meet some of the world’s most dangerous reptilian predators
Can alligators and crocodiles crossbreed?
Crocodiles and alligators are often confused for one another, but that doesn't necessarily mean they can interbreed, says Stuart Blackman.
Crocodile experts just made a huge discovery in the Caribbean Sea
A new DNA study has revealed two previously unknown species of crocodile, both hiding in plain sight on the islands of Cozumel and Banco Chinchorro off the Yucatán Peninsula.
"It gives some hope": new population of near-extinct tiny chameleons discovered in Madagascar
The discovery of the Belalanda chameleons offers "a rare opportunity" to help conserve the species, say researchers.
This deadly giant lizard can kill a human, yet Indonesian villagers let them roam on school playing fields
On the remote reaches of Komodo island, people live alongside dragons. We find out how they do it – and why they're willing to take the risk.
13 deadliest snakes: Meet the world's most venomous snakes whose lethal bites can kill a human...
Snake bites constitute a major cause of animal-related deaths, with the WHO describing it as a “a neglected public health issue”. Here is our list of the deadliest snakes with bites that can kill...
9 weirdest snakes in the world, from flying serpents to spider-tailed vipers. There's even a spiky species that looks more like a dragon...
Discover the planet's most bizarre and frankly weird snakes, including one that can glide through the air
Why do snakes slough their skin?
You might have seen a ghostly snake skin left behind on a walk – but have you ever wondered how snakes shed them?
"Insanely lucky" drone pilot catches rare glimpse of ancient animal in Australia
The endangered sea creature has only been sighted around 60 times in New South Wales – this lucky photographer caught three different individuals on film.
An enormous snake-friendly zone is being created in this English national park – here’s why
Conservationists hope that the 250-hectare area will provide a safe refuge for adders, smooth snakes and other UK reptiles, including sand lizards.
“This is what a turtle eruption looks like – wait till the end!"
Watch the magical moment baby green turtles erupt from their nest on Heron Island in Australia.
These animals may all be female, but that doesn't stop them enjoying sex – thanks to a bit of role play
Some whiptail species are completely female and have virgin births