2 million animals cross deadly rivers, vast savannahs and evade lethal predators on an epic 1,000 km journey every year. Here's why...
The great migration is the largest circular movement of animals on the planet.
"It can reach a height of 55 metres, which would see super-heated water shooting over Nelson’s Column were it situated in London's Trafalgar Square"
Its all-star cast of charismatic megafauna which makes Yellowstone indisputably one of the top wildlife attractions anywhere in the world
"It can grow another penis within 24 hours..."The world's 9 weirdest penises – including a detachable one that swims off after a mate
Animal penises come in all sorts of shapes and sizes...
“It's deadlier than cyanide and causes paralysis and death. And, unfortunately, there's no known antidote..." 8 most poisonous BIRDS on the planet
They say that you are what you eat – and these unassuming birds eat toxins like it’s nothing.
This fish lives in complete darkness – and scientists just found out it does something weird...
The two different species of cavefish live on the surface and in complete darkness, offering a rare glimpse into how the brain evolves and adapts to different environments
"To survive the winter it builds itself a life-support bubble. We can assume that the structure is more or less sealed..."
Nick Baker takes an in-depth look at the marsh fritillary's winter survival skills
"I experienced relaxation of muscles in the limbs, was hardly able to speak or control my facial expression and felt almost like I were going to die”
The flower urchin looks like it’s covered in hundreds of beautiful petals but each one is a set of snapping jaws ready to bite
A giant 'horror movie' plant that can cause painful burns, eye damage and even blindness – with some effects persisting for months or years
You definitely don't want to go anywhere near this highly toxic plant. Here's what to look for and how to deal with it
It looks like a dog, growls like a dog and acts like a dog – but is it actually a dog? It depends on who you ask...
Meet the dingo, an iconic species of Australia
Researchers took moss from the Californian desert – and found something very weird (and tiny) in it
Mosses are known for their durability, able to survive anywhere from the peaks of the Himalayas or the sands of Death Valley, to the unforgiving vastness of space
Birds
“I was photographing seabirds on a remote island off Norway. Then a huge predator appeared from nowhere”
Wildlife photographer Josef Stefan on no-show bustards, eagle drama and a lens cap fail
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
Fierce, majestic – and built to kill – The world's biggest and mightiest birds of prey
All you need to know about the magnificent birds of prey, including the biggest in the world
"It stands on its rock looking not so much like a streamlined submariner as an overfed blackbird"
Known in Welsh as a ‘bird of the torrent’, the dipper is the UK’s only aquatic songbird and always fascinating to watch.
Do birds pee as well as poo?
When it comes to excretions, birds do a two-for-one deal
8 astonishing close-up photos of the world’s most beautiful pheasant
Resplendent in red, gold and blue, the male of this spectacular species sports a crest like a barrister’s wig – even if it leaves him with massive blind spots
How to identify wildlife
Red squirrel vs grey squirrel: Think you know how they differ? Think again as the differences between these two squirrels will surprise you
We take a look at how the red squirrel differs to its American grey cousin
Brown rat or water vole: How to tell the difference between these two lookalike-rodents
When all you've seen is a flash of brown fur, it can be hard to know whether it was a water vole or rat. Though the two species tend to live in different habitats, there are areas where they overlap, potentially leading to cases of mistaken identity. So how do you tell rats and water voles apart?
Mink or otter? What's the difference between these two slippery, semiaquatic lookalikes?
How do you tell the difference between otters and mink?
LRPs, PG Tips and Jizz: Cracking the secret language of birders
You’re sitting in a hide and overhear other birders talking. The conversation ranges from ‘LRPs’ and ‘roosting Leos’ and you scratch your chin as you try to decipher their code – welcome to the world of birding jargon.
It's the fastest animal in the world and its deadly claws can catch prey mid-air: Meet one of the world's most incredible birds of prey
Peregrines are the ultimate urban predator. Learn all about them, including how to spot them ‘stooping’ to catch prey
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Save 30% when you subscribe to BBC Wildlife Magazine, plus receive Simon Barnes’ latest release, Spring is the Only Season
Plants
Vomiting, paralysis, kidney failure, death: This foul-smelling plant is so deadly it was used to execute condemned prisoners in ancient Greece
This common wildflower looks like several other plants but if you confuse them you'll regret it. Discover hemlock and just how poisonous it is
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
"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 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
