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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
Penguins are taking over a beach town in South Africa – and the locals love it
In Cape Town, the local penguins have found a place in many people’s hearts, helping to secure their future
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Scuba divers in Bali thought this huge shape was a whale shark. But it wasn't
In an extremely rare encounter, a great white shark joined a group of scuba divers in Indonesia.
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
This eye belongs to a deadly predator – can you guess which one in less than 14 seconds?
This is a close-up image of an animal eye – can you guess which creature it belongs to?
"While healthy adults were off the menu for most predators, the old, sick and young often faced grisly ends." 9 animals that could kill giant mammoths
They may be amongst the largest mammals to have ever walked the Earth, but mammoths weren’t exactly free from predation…
It had a massive 50cm leg span and was hailed as a giant, terrifying prehistoric spider – but scientists got it spectacularly wrong…
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
Pumas are saving human lives in Washington State. Camera-trap footage reveals how…
Pumas change the way deer behave around roadways, leading to fewer collisions with cars, new study finds.
It's the size of Ireland and home to a whopping 400 million individuals – making it one of the most densely populated places on Earth
In 1901, an ecologist discovered an enormous animal 'town' in West Texas
Elusive and rare mammal released into the Patagonian mountains
An endangered deer is at risk of a livestock-spread disease. Now a treatment centre has released its first patient back into the wild
"It’s estimated that 35,000 creatures died on this beach…" 10 deadliest beaches on the planet including Skeleton Coast – world’s largest ‘ship graveyard'
There’s a cave in Kentucky that’s 426 miles long, 118 metres deep – and fish-eating spiders lurk in it
Mammoth Cave is the longest known cave system in the world – but where is it?
It spans 6000 km of the coasts of Portugal, Spain, France and Italy and houses billions of individuals – the animal that builds cities
How one super-sized ant colony could house half a billion ants
How did dinosaurs have sex with all those dangerous spikes, claws and plates? It wouldn't have been easy…
Wondering how dinosaurs mated? With difficulty, says JV Chamary.
They contain a quarter of all freshwater on Earth – but home to hundreds of ocean-like creatures
The sprawling African Great Lakes support a high number of endemic species
It looked like a shark, acted like one and lived 370 million years ago – before even the dinosaurs… but was it the first shark ever? The jury's still out…
Try as they might, palaeontologists have yet to agree on what the first shark actually was…
When a giant iceberg calved from the Antarctic Peninsula, it revealed a deep-sea world never seen by humans
With the help of a remotely operated vehicle, researchers went on an eight-day mission to explore the newly exposed seafloor, where they captured extraordinary footage of a host of deep-sea creatures, including a giant phantom jelly.
It’s large enough to swallow a skyscraper, wide enough to fly a jumbo jet through, and is filled with underground clouds and a river
Hang Son Đoòng is the world’s largest natural cave and remained undiscovered until 2009
Mega volcanoes, asteroid impacts and 'the great dying' – 5 deadly mass extinctions that changed life on Earth forever
What is a mass extinction – and how many of them have there been? Will Newton takes a look the 'big five' extinction events
You’ve never seen polar bears like this before: 14 captivating photos that reveal the deadly apex predator's softer side
Polar bears might rule the Arctic, but they also have a surprisingly tender side – captured here in 14 striking moments in the wild
"People risk being attacked, mauled and possibly killed…" The rise and rise of the reckless wildlife tourist
From patting penguins to selfies with bison, are people behaving increasingly foolishly around wildlife? And is education or punishment the answer?
Goldcrest or firecrest? What's the difference between these two diminutive, cute birds?
Know your goldcrests from your firecrests? Joanna Peaker from The Scottish Wildlife Trust takes a look at some of the differences…
