Mammals
Fascinating facts about our warm blooded friends - the mammals.
It's the size of a Labrador and barks like a dog, yet has fangs like a snake and doesn't eat meat. Meet one of the weirdest wild animals in the world
Discover all you need to know about muntjac deer, including why it has glands on its face
They catch it, play with it… then kill it without eating it… So why do cats do this?
Just why do cats play with their prey before killing it? Rae Foreman-Worsley investigates
Watch jaw-dropping videos of a million wildebeest migrating across Africa – and crossing the infamous Mara River where hungry, deadly crocodiles await
Watch one of nature's greatest shows unfold
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It's as heavy as a grand piano, has enormous paws the size of frying pans and deadly claws as long and sharp as surgical scalpels…
In our expert tiger guide, learn about the world's biggest cat including key species facts, how they hunt and best places to see in the wild.
Researchers took DNA from 115 ancient bison. What they found will help the bison of today
North America's largest land mammal was pushed to the brink of extinction. Now, its population is recovering – and a new genetic study of bison that died thousands of years ago could help guide future conservation efforts.
Some animals give each other names, like humans do. Now scientists know why…
From elephants and parrots to dolphins and marmosets, there are plenty of creatures who use naming systems
"Their venom is a highly potent neurotoxin, 15 times more toxic than a rattlesnake’s..." 10 most dangerous, deadliest animals in the Grand Canyon…
Mountain lions, poisonous lizards and tarantula-eating wasps: introducing the Grand Canyon’s most deadly wildlife
Watch incredible close-up footage of a giraffe doing the splits just to take a sip of water…
Evolution gave giraffes a 5-metre plumbing problem…
Is this the world's most aggressive animal? The size of a fox, this badass raids beehives, steals from lions, shrugs off snake venom and never backs down…
Renowned for fighting larger animals, the honey badger (also known as the ratel) is a notorious mammal found across much of Africa and Asia.
"It swoops down on its prey and grasps it with claws as it tears off the head…" 7 animals brave enough to take on – and kill – the deadly king cobra
The longest-recorded king cobra was an impressive 5.85 metres long, raising the question, what sort of animal would dare to take one on?
Wolves were the poster child for the ‘alpha male’ concept – until researchers realised they’d got it wrong
Alpha males do exist in the animal kingdom – but not in the species you might think
It looks like a mouse but don't be fooled – this is no ordinary mouse. This is one badass, very aggressive rodent that can take on deadly scorpions – and win…
Meet the tiny predator that howls at the moon before striking a deadly attack – discover the deadliest mouse in the world.
Think it's just elephants that have trunks? Think again! Here are 7 animals that have trunks – including surprisingly a primate…
The animal kingdom is full of unique shapes and appendages – here's a closer look at trunks (and really long noses)
“It swam a colossal 3km to get there” – Surprising creature spotted on Alcatraz
In 2026, an unexpected animal swam from Angel Island to Alcatraz
How many wild dogs are there in the world? Scientists can't even agree…
10 deadliest cats in the world, including one that kills every 50 minutes: Meet the world's most efficient feline killing machines
Meet the planet’s fiercest and most ruthless felines
"Observations suggest that they can float to the surface for air and then sink down again – all without waking up…"
How exactly have these notoriously aggessive animals evolved to function under the water?
When a pride of lions went down to the waterhole, they bumped into a hippo. Here's what happened next
Young lions need lots of practice to hone their hunting skills. This safari group was in for a spectacular show watching their attempts.
10 biggest wild dogs on the planet, including one beauty close to extinction – "Their eerie howling from a wintery mountainside brings a shiver to the spine…"
Discover the biggest and most ferocious members of the dog family
Record-breaking runs, swimming successes and theatrical tussles: These 13 beautiful photographs reveal the leopard’s astonishing athletic abilities
The enigmatic leopard is a master of stealth – but photographers are occasionally able to capture their striking beauty in the wild
It may look like a dog, but don’t be fooled – Africa’s most efficient killer, which can travel up to a staggering 72km/h, is neither a wolf nor a dog
The largest canid in Africa is also classified as Endangered. In our African wild dog guide, learn more about the species, including diet, habitat and why they're endangered.
Is there a lion in your living room? How your pet cat has more in common with their wild cousins than you might think
How wild is your cat? John Bradshaw reveals why our feline companions have not lost touch with their wild side
A hazelnut-flavoured contraceptive for grey squirrels? New science offers hope for UK’s dwindling reds
Scientists pin hopes on a new contraceptive and vaccine amid stark warnings that time is running out
At a staggering, gigantic 33 metres long it's not only the biggest animal in the world today, it is the largest animal to have ever lived...
Our guide to the world's largest ever creature, the blue whale
