In the world of biology, being declared extinct is usually a permanent sentence, but nature occasionally loves to prove us wrong. These incredible animals, often referred to as “Lazarus species,” ...

More than 500 million years ago, during what is known as the Cambrian period, the seas and oceans on Earth were filled with a ...

Paraceratherium was one of the most extraordinary mammals ever to walk the Earth, a gigantic hornless rhino relative that may ...

Researchers around the planet grew up watching documentaries hosted by the English broadcaster and naturalist, which sparked ...

Corals are in fact three things in one: something of an animal, something of a plant, and something of a stone. They make ...

Deep in the rainforests of Papua, Indonesia, two marsupial species that scientists believed had been extinct for roughly ...

A great Tyrannosaurus rex strides through the conifer trees of her territory, sniffing the air. She picks up the scent from ...

Tap in to collect badges, points, learn more about unseen worlds and stand a chance to swim with the gentle giants of the sea ...

The kraken — a gigantic, tentacled sea monster capable of dragging ships and sailors down into the depths — is a creature of Norwegian myth. But millions of years ago, a similar real-life animal ...

Does an elephant really need to be that massive? Why aren’t there any giant insects? Why did animals in New Zealand evolve to ...

Artistic reconstruction of a dire wolf. You may have seen them in Game of Thrones, but dire wolves aren’t fantasy beasts.

From ice-age hunters to our closest extinct relatives, this essential guide uncovers who the Neanderthals really were — and what they reveal about us.