Reptiles
Staggering crocodile photos reveal just how ferocious these apex predators can be
Dramatic images of crocodiles – from the banks of the Nile in Africa to the crystal-clear waters of the Caribbean Sea.
7 weirdest lizards on the planet: These reptiles are so strange they could be from a sci-fi movie – except every one of them is 100% real
They may look cute but don’t be fooled – watch the gut-wrenching moment a prairie dog defends his pups from being devoured by a bullsnake
BBC footage captures the moment a brave black-tailed prairie dog attempts to drive away a large bullsnake
It bites its own tail to become a brutal spiked wheel: Is this nature’s bizarrest defence mechanism?
Coiled in self-defence, this armoured creature turns its body into a formidable fortress to evade predators
It looks like a spider and moves like a spider, but this is no spider – it’s an evolutionary nightmare. Watch the deadly killer in action
A flycatcher thinks it's found a spider for lunch – but all is not what it seems...
Can a human outrun a crocodile? Just how fast are these deadly reptiles?
Just how fast are crocodiles?
What are the most dangerous snakes in Australia? Discover the country's top 4 deadliest serpents
Learn about the potent venom of these dangerous reptiles, as well as habitats, and the risks they pose to humans. 
Iguana filmed “blowing snot rockets" in Galápagos
Unlike other lizards, marine iguanas can forage at sea – and have a clever strategy to get rid of the excess salt from their diet.
It squirts toxic blood from its eyes, has armoured spiky skin and can self-inflate to twice its size. Is this one of the weirdest animals on the planet?
Also known as the horny toad, the North American horned lizard has an impressive arsenal of novel, powerful - and frankly weird - defences says Alex Morss
Snake more lethal than we thought: Scientists find deadly mambas have a secret second strike that's more dangerous than their first. here's why...
Antivenom doesn’t always work against mamba bites, and scientists have just figured out why.
Watch slow-motion BBC footage of how alligators use the gruesome ‘death roll’ to kill their prey
Ever wondered how alligators can take down much larger prey? It's all thanks to the death roll
What’s the deadliest snake in USA?
The USA is home to around 250 different of snake – but which is the deadliest? The answer lies in the potency of its venom. 
Enormous piles of rotting seaweed mount up on Florida beaches – and they're snaring sea turtle hatchlings
Record amounts of sargassum seaweed washing up on the coast of Florida are making it harder for vulnerable sea turtle hatchlings to reach the ocean, new research finds.
It contains the world’s deadliest snake and one of the only venomous mammals – so why does Australia have so much deadly wildlife?
Is the wildlife really more deadly 'down under'? Helen Pilcher takes a look at why Australia has so many dangerous animals
It is one of the most deadliest and feared snakes in the Americas, able to kill a person with one bite. Fortunately you can hear it coming...
Keep an ear out for their infamous rattle if you are spending time in the American wilderness!
India's deadliest snakes to become even more dangerous, new study suggests
A new study warns shifting snake ranges driven by climate change could put millions more people at risk of deadly bites.
Researchers deploy 120 robots in Everglades National Park. Their mission is to help catch 20ft snakes
The fluffy robots – designed to mimic marsh rabbits – are part of a new approach to try and remove invasive Burmese pythons from the Florida wetlands.
Huge dinosaur-eating 'hypercarnivore' as heavy as a grizzly bear discovered in Argentina
The remains of the massive crocodile relative – which may have grown up to 3.5 metres long and weighed as much as 250 kilograms – were found in southern Patagonia.
More than 1,000 rattlesnakes caught in Michigan wetlands. What scientists find in their DNA is concerning
Eastern massasauga rattlesnakes are struggling to survive as habitat fragmentation forces them to breed with close relatives, new research shows.
61 black mambas captured in African city. Here's what experts found in their scales – and why it matters
New research shows the highly venomous snakes absorb heavy metals into their scales, helping scientists track urban pollution.
It has iron-coated razor-sharp teeth, weighs the same as a beer keg and delivers its deadly venom by raking its teeth through its prey’s flesh
Komodo dragons have inspired myths and legends for centuries. We take a look at the fearsome predator
There's a peculiar animal in the Amazon that has a triangular head and looks like a log
As if that wasn't odd enough, the mata mata also has webbed claws and a snorkel-like snout – surely a contender for one of the planet's weirdest creatures.
10 most beautiful snakes in the world – from sunshine-coloured vipers with beguiling eyelashes to monochrome marvels of the sea
Snakes get a bad rep, but these top 10 species prove they are some of the most enchanting animals in the world
This weird Australian lizard is immune to deadly snake venom – now scientists have found the “ingenious” mutation responsible
Scientists have found that Australian skinks now have the same genetic mutation found in the famously fearless honey badger