Mammals
Fascinating facts about our warm blooded friends - the mammals.
"A male's penis may be all that a female has to go on when assessing the quality of her suitor."
When you can't choose your suites by sight you have to rely on other attributes
Huge outcry as Australia shoots 700 koalas from helicopters
The cull took place following a large bush fire that destroyed thousands of hectares of habitat in Budj Bim National Park, Victoria.
Bite marks found on York skeleton provide first evidence of Roman gladiators fighting lions
The skeleton offers the very first physical evidence in Europe of human-animal combat, say researchers.
How much wildlife do cats ACTUALLY kill – and should we keep our pet cats indoors?
We may love our pets, but the truth is that they can be a real problem for wildlife, says James Fair
Weirdest primates in the world: These are the planet's most peculiar (and most wonderful) primates
From the guttural scream of the howler monkey to the ever-growing rat-like teeth of the aye-aye, the primate world is full of weird and wonderful creatures
“Utterly spectacular”: incredibly rare 'pack ice' killer whale filmed swimming in Antarctic snow
Pack ice killer whales are a unique type of orca that live in Antarctica – and there are fewer than 100 left.
Wild chimps caught boozing on camera for the first time, eating and sharing alcohol-infused fruit
Humans are famously drawn to alcohol for strengthening social bonds and feasting – and now new research shows that our chimpanzee relatives might be seeking it out for similar reasons
These fascinating, bizarre jungle creatures, with eyes as big as saucers, are found on just one island in the Indian Ocean
Endemic to Madagascar, lemurs are a fascinating group of primates which are closely related to lorises and bush babies. They face a range of threats, and 98% are deemed to be endangered. Learn more about these lemurs in our expert guide by the Lemur Conservation Network.
Giraffes only sleep for 30 minutes a night and only drink a couple of times a week? Discover 15 crazy facts about the world's tallest animal
Impress your family and friends with your giraffe knowledge
World's biggest animal migration is an aerial spectacle worthy of a place on Africa's Big 6, says Mike Dilger
Every year, hundreds of thousands of bats flock to Zambia to feast on a bounty of fruit
This tiny, solitary bear can mimic facial expressions like humans – wait, what?
The skill of facial mimicry does not lie solely with primates says Stuart Blackman
There's a curious masked animal in the Appalachian Mountains – and every year its skeleton shrinks
Scientists noticed this rare body transformation while studying the animal in Pisgah National Forest, North Carolina.
This odd mammal was close to becoming extinct, but is now reclaiming its ancient grasslands across Yellowstone National Park
These iconic American mammals once faced extinction but are slowly reclaiming their grassland home.
There's a rare and mystifying animal in the Pyrenees mountains that looks like a tiny, furry elephant
Webbed feet, a flexible snout and waterproof fur – the curious Pyrenean desman is surely one of Europe's oddest mammals.
What are the differences between rats and mice – and how do you tell them apart?
These rodents might both have long tails, twitchy whiskers and possibly not a great reputation – but they are surprisingly different once you know what to look out for
Dire wolf 'de-extinction': here's everything you need to know
Is the dire wolf really back from extinction? Here's what the experts think.
David Attenborough narrates amazing BBC footage of grizzly bears hunting during the annual salmon run – one of nature’s greatest spectacles
Pangolarium: veterinary and rehab facility dedicated to pangolins opens in South Africa
The new rehabilitation centre offers hope for the planet's most trafficked mammal, say conservationists.
The spine-chilling screams of this 10kg powerhouse, with its fearsome set of teeth, had settlers convinced they were hearing the devil himself
What is a Tasmanian devil? How big are they and what do they eat? Learn all about the cute but devilish Tasmanian devil in our expert guide
Rescue mission: 17 rare mountain bongos airlifted halfway around the world – see inside the epic journey
The large, striped antelopes were flown from Florida to the slopes of Mount Kenya in a bid to help save the Critically Endangered subspecies from extinction.
Why are sloths so slow?
Sloth scientist Becky Cliffe discusses why being slow actually contributes to a sloth's survival.
In 2013, dozens of dolphins mysteriously died in Florida – scientists just figured out why
Researchers have finally solved the decade-long puzzle of why so many of Indian River Lagoon’s dolphins died in a single year.
Nature's most bizarre creatures: These are the 10 weirdest mammals on the planet
From egg-laying echidnas to star-nosed moles, the animal kingdom is full of bizarre and fascinating mammals you may not believe exist
This weird mammal occupies abandoned burrows and has a ‘sixth sense’ – and is best friends with a mongoose
This bizarre-looking member of the pig family stays in all-female communes, and has a surprisingly impressive top speed.