The world’s fastest animals will undoubtedly include the speedy cheetah – but there are many other fast creatures on the ...

When considering the fastest animals on Earth, size seems like it should matter. Yet the cheetah, weighing around 50 ...

Scientists refine the timeline of sponge origins, showing soft-bodied ancestors likely evolved later than some chemical evidence suggested.

A team of scientists digging up some of the Earth’s oldest rocks has uncovered new chemical evidence that Earth’s first animals were likely ancestors of the modern sea sponge. The discovery relies on ...

Earth’s first sponges may have been ghostly, soft-bodied pioneers—ancient animals that evolved long before their skeletons ...

Nature is full of surprises, but few are as fascinating as hybrid animals, creatures born from crossing two different species ...

Planet Earth used to be something like a cross between a deep freeze and a car crusher. During vast stretches of the planet’s history, oceans from pole to pole were covered with a blanket of ice a ...

Humans are captivated by the idea of finding life elsewhere in the universe – and even more by the idea that life, if found, might resemble the complex, animal life here on Earth. One of the easiest ...