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"It could sprint at 40mph and had a huge skull with a deadly-looking, hooked beak and swallowed its prey whole…" 10 deadliest prehistoric birds ever
These early birds certainly caught their worms, and more. Meet some of the deadliest birds that ever lived…
"It could have weighed as much as 10 tonnes, more than double the weight of an African elephant and possibly as much as 14.3 tonnes!"
Discover key facts about the different species of mammoth – where they lived, what they ate, and why they went extinct.
"The thought of them lurking under the water is enough to give you the shivers – After drowning its victim it rapidly rolls it to remove its limbs…
A deadly predator, learn about saltwater crocodiles in our expert guide, including where they live in the wild, diet and whether crocodiles really sleep with one eye open.
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“A mutating army of deadly germs” – 8 deadliest bacterial diseases to avoid like the plague
A bacterial infection is nothing to worry about – that’s what antibiotics are for, right? Well, not exactly, as an increasing number of them are now being outsmarted by a mutating army of potentially deadly germs.
"With a single bite, prey can be incapacitated or sliced in half, by fearsome, razor-sharp teeth the same size as a great white's…"
Meet the fearsomely fanged, freshwater monster with a bite like a crocodile
More than 6,600km long, it flows through 11 countries, across deserts, jungles and wetlands... And hides some of Earth's deadliest animals
Would you convict a pig of murder?The sow that was seized, brought before the local court, convicted for murder and sentenced to death
It looks like a friendly garden bird, sings like one too – but it's one of the most toxic creatures alive
Just how poisonous is the hooded pitohui?
It might be called a fox, look like a fox and act like a fox - but don't be fooled, this is no fox
Do ants use toilets?
How one species of ant even have toilet attendants...
“Some believe that Gibraltar Falls was 1,000 times higher than Niagara Falls.” This could be the largest flood on Earth of all time
The Zanclean Flood, which is theorised to have occurred 5.33 million years ago, refilled the Mediterranean Sea
"The fangs are huge, too large for it to close its mouth. Instead, they act as a cage, trapping would-be prey as though on Death Row"
The mega-mouthed fish that can turn on the lights and catch prey in a cage
What's the deadliest animal in India for humans? Clue - it's responsible for a staggering 20,000 deaths a year and it's not the mosquito…
India is packed with venomous and dangerous animals, but which one is the deadliest? Stuart Blackman looks at the contenders for India's deadliest animal
This weird fish has a hedge-trimmer for a face. Scientists have just discovered something shocking about it
Scientists assessed how vulnerable sharks and rays around the world are to climate threats and the largetooth sawfish came out top
“He’s a 1,000kg wild marine predator that is very capable of hurting someone if startled.” Who is Neil the seal?
Neil the seal hauls out onto the island of Tasmania twice a year – around 930 miles from where he should be
There's something strange that's twice the size of Vatican City – and like nothing else on Earth – living in a Scottish loch
Serpulid worms are found all around the world but reefs are rare. The largest of them all is in the shallow waters of a Scottish Loch
"They attack by biting the flanks, legs or throat to immobilise it." From Arctic hunters to forest stalkers, here's all you need to know about the dog's wild cousin
Both feared and revered, wolves play an important role as apex predators. In this guide, we take a look at their habitat, hunting techniques and more
Remote cameras capture woodcocks aggressively charging deer in West Virginia
American woodcocks will go to extreme measures to defend their nests, new research reveals.
"Parts of it have so little oxygen, they are considered ‘ecologically dead.’" 10 most polluted, toxic rivers on the planet
Rivers are vital for life. They provide fresh water for drinking and food production. They are homes for wildlife, reduce the risk of flooding and help to mitigate the effects of climate change. Yet, they are under threat.
"Many animals have amazing courtship dances and this species take it a literal step further by dancing on water… 5 incredible animals that can walk on water
Meet the animals that are able to scuttle, dance or skate across water
Nature's oddest mammals: the egg-laying mammals that blur the line with reptiles
All you need to know about monotremes, weird egg-laying mammals
Mysterious new monkey species with orange lips discovered in the Congo rainforest
Known locally as likweli, the newly described African monkey has black fur and produces loud, roar-like calls.
“Their abdomens are swollen with liquid fat.” The irresistible feast drawing grizzly bears to Montana's mountaintops
Every year, grizzlies head to the upper slopes of Glacier National Park to gorge on fat-filled moths. A new study has mapped these foraging sites to offer park managers a tool for protecting them.
Humans and starfish have something surprising in common. Here’s what we can learn from them
Humans and sea stars have something in common – here’s why it matters to scientists studying organ development
