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Mountain lions moved into a tiny Californian preserve. What happened next astounded scientists
A powerful trophic cascade occurred when mountain lions began frequenting a small preserve south of San Francisco
It might be pretty and used in jewellery, but it contains one of nature's deadliest toxins that causes vomiting, convulsions, liver failure and death
BBC Winterwatch will not be returning to our screens in 2027
The BBC has announced the cancellation among other cuts across news, nations, TV and radio content.
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When marine scientists found a plastic bottle floating in the ocean, they were shocked to see this large animal living inside, unable to escape
Marine scientists were shocked to find a large live crab stuck inside a small plastic bottle. This is how it got there
7 animals that could kill the deadliest predator that ever lived - the infamous T.rex
T.rex was perhaps the deadliest dinosaur that ever lived. However, that doesn’t mean it didn’t face threats from other animals…
"Swollen lesions appear around the mouth, nose, eyes, ears and genitalia with death normally occurring within 10-15 days"
Squirrel pox is a deadly disease for red squirrels. The Red Squirrel Survival Trust explain what you need to know
"A bubble appears at the top of the head, over the snout. It expands, stretches, connects with the rest of the air pocket surrounding its body"
Discover the riparian reptile that evades danger by blowing bubbles.
"These lethal 20cm thorns cause severe puncture wounds & painful infections." The tree that's still armed against monsters last seen 12,000 years ago
The honey locust gets its name from the sweet pulp within its fruit – but apart from that, there’s nothing sweet about this thorny tree.
It contains a glacier that's 3 times taller than the White House – and is home to prowling pumas and giant birds
In Argentina’s Los Glaciares National Park, soaring granite spires rise above vast glaciers and shimmering lakes in one of South America’s most striking landscapes
Which big cat has the strongest bite AND just how deadly is that bite for humans?
BBC Wildlife section editor Sarah McPherson answers your wild question.
The deadliest animal you could encounter in a national park probably isn’t a bone-crushing, 300kg apex predator – it’s something much more surprising
Researchers analysed the most common animals involved in aggressive human-wildlife encounters – and discovered something unexpected
Satellite images reveal more than 1,000 unmapped coral reefs in Australia
The discovery of thousands of previously unchartered coral reefs could reinforce conservation efforts in northern Australian waters, say researchers.
“It’s by far the largest I’ve ever seen in my 25 years as a marine biologist…” New 4-metre giant, 400-year-old creature discovered
A coral over twice the average height of a male adult human – and is also possibly 400 years old – has been found in the depths of Fiordland
What’s the difference between fringing reefs, atolls and barrier reefs?
Coral reefs may look similar at first glance, but their shapes, locations and structures reveal how they form – and how vulnerable they are.
It's as long as a basketball court, as tall as a giraffe and so huge it can be seen from space
Experts estimate that the massive mega coral – found near the Solomon Islands in the south-west Pacific Ocean – is about 300 years old.
11 of the biggest animals on Earth – number 4 is absolutely massive!
From river giants to land-dwelling beasts, these are the biggest creatures walking, swimming and flying across our planet today.
A Roman scholar proposed this nature theory more than 2,000 years ago. It took until 1999 to prove it
Mathematicians have long been fascinated by the geometry of natural forms. And the hexagon reigns supreme.
Dynamite whales, exploding toads, suicide ants, bomb rats: 10 most explosive animals on the planet (and yes they make a mess)
Explosions are messy at the best of times, but when the thing exploding is an animal, or part of an animal, it rarely ends well.
It looks like a spider and moves like a spider, but this is no spider – instead it's an evolutionary nightmare. Watch the deadly reptile killer in action
A flycatcher thinks it's found a spider for lunch – but all is not what it seems...
“It was an intense pain. Almost like burning. It took me a moment to understand what exactly was going on. A real ugly fish. Big eyes, big teeth.”
Meet the The fearsomely fanged, five-foot long freshwater shark.
It's huge – the size of a dustbin lid – has 21 arms lined with deadly barbed spines capable of causing severe pain - but that's not its most alarming feature...
A sting from this huge starfish could cause pus, bleeding and anaphylaxis. But that’s not the only reason to be VERY worried
Was a taxi driver from Washington, USA, the biggest ape who ever lived?
Stuart Blackman takes a look at the contenders, past and present, for biggest ape in the world - including the real King Kong
It might look like an insect, but this is no insect - it's flower hell-bent on deceiving males
Have you noticed some flowers look like insects? It's all to do with sexual deception says Phil Gates
Meet the mighty, majestic Andean condor, one of the world's most powerful and impressive birds and at 15kg the heaviest bird of prey
The mighty Andean condor – the heaviest bird of prey in the world and the raptor with the longest wingspan – needs little introduction, says Mike Dilger. Learn all about them in his expert guide - including where to see them
