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This animal’s sex session lasts longer than a working day
Small, cute, and surprisingly single-minded about mating
Strange animals found 3,800m deep at Titanic wreck
Big-eyed fish, curious-looking brittle stars and white squat lobsters are all living at the wrecked ship, which sank to the bottom of the Atlantic Ocean more than 100 years ago.
"This discovery made us reconsider what it means to be human" – The 10 greatest wildlife discoveries of all time
From finding out where swallows go in winter to discovering microbes here are 10 of the greatest biological discoveries ever
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Can chimpanzees and other great apes breed with monkeys?
Can any primates interbreed? James Fair investigates
It's 3 million years old, the size of Vikos Gorge and is home to one of the world's weirdest animals – the 'human fish'
Megan Shersby explores one of the world's most spectacular caves, Postojna Cave
Which absorbs more carbon – forests or oceans?
Forests store a remarkable amount of carbon, but which stores more – forests or oceans?
It’s the same size as Japan, can be seen from space and is a UNESCO World Heritage Site – and it’s teeming with thousands of species
The largest coral reef in the world is also the most famous, attracting millions of visitors each year
This prehistoric apex predator is older than trees, the Atlantic Ocean and even the North Star. A biologist explains why
Are sharks really older than trees? Yes – and a whole lot more, explains Will Newton
It's the biggest snake den on the planet – 100,000 crammed into a small cavern
Not a place to visit if you're scared of snakes...
It existed 800 years ago, was home to 100,000 people – and was powered by poop
New research suggests that seabird guano may have been one of the main driving forces behind the rise of Peru's Chincha Kingdom.
Scientists spent 160 days collecting samples from the bottom of the ocean. They had “virtually no idea” what lived there before
A team of researchers have collected hundreds of previously unknown species to understand the impact of deep-sea mining
It weighs up to a whopping 30kg, has a diameter of 50cm and is the biggest seed on the planet
BBC Wildlife section editor Sarah McPherson answers your wild question.
Why is oil so deadly for birds' feathers?
Oil spill incidents always involve birds being rescued and cleaned – but why is oil so damaging, and in many cases fatal, to birds?
Meet the animal that's part vegetable and able to embed plants into its own body tissue - yes really!
The Costasiella sea slug is a rare example of a photosynthetic animal, says Stuart Blackman. Here's what's so special about it
Weirdest sea creatures - meet 15 strange ocean animals, including one that's part vegetable and one that resembles a toast rack
Have you heard of the Johnson's abyssal seadevil? Read about this strange ocean animal and more in our guide to the world's weirdest sea creatures
1.6 million years ago, a bird flew over this mountain range in Haiti. It helped create a plant wonderland
Research reveals the flight paths of ancient birds kickstarted the evolution of an exceptionally biodiverse mountain range in the Caribbean nation.
Weighing a tonne and packed with hundreds of rooms – each home to a family — it can house a staggering 500 households. Is this the ultimate apartment block?
It’s the heaviest, largest, most densely populated bird nest… that's been built and extended over decades
Mystical 'phantom of the forest' caught on camera in remote Asian mountains
The rarely seen serow was one of many species spotted during a recent survey in the Annamites mountain range.
9 brutal photos of the world’s most powerful bird that can rip monkeys and sloths from branches
These incredible images reveal the power and brutality of this extraordinary eagle
“It took me a few seconds to register what I was seeing.” Diver makes incredible discovery in Australian kelp forest
Researcher Océane Attlan just found a fish so rare it has only been recorded once since it was first discovered.
"It has ventilation systems, food storage, nurseries, toilets and highways" – 11 animals that build villages, towns and even cities
It's not just humans that build villages – so do other animals. And they can be so enormous they're visible from space
"A policeman listed our alleged crimes: 'Illegal entry into Sierra Leone, illegal stay, and suspected subversive activities in the forest...'"
Making a wildlife film can be a dangerous business especially in a country with a troubled past
What has King Charles III done for the environment? All you need to know about his projects, from space exploration to tropical rainforests
King Charles III is known for his love of the environment – and his actions have often divided opinion. But what has he actually done for the natural world?
It looks like a snake and moves like a snake - but don't be fooled. This is no snake...
Despite its appearance, the slow worm is not a snake (or a worm) but a legless lizard
