A new study proves for the first time that the ‘two-thirds scaling law’ applies to large animals as well as small ones, ...

Animals, from worms and sponges to jellyfish and whales, contain anywhere from a few thousand to tens of trillions of nearly genetically identical cells. Depending on the organism, these cells arrange ...

A group of teeny tiny mouse-deer in the family Tragulidae numbers 10 species that live in warmer parts of Southeast Asia, India, and Africa. They are small, delicate, and extremely elusive: they are ...

The world is full of tiny wonders. This article showcases ten of the smallest animals. These creatures can fit in your palm.

In the animal kingdom, some creatures live incredibly short lives, ranging from a few hours to a week. These species, ...

Sloths weren’t always the slow, tree-hugging creatures we know today. For millions of years, they came in a wild variety of ...

The individual show for horses and ponies is your opportunity to highlight the strengths of your partnership. Prepare to win ...

Biologists have confirmed the existence of a 200-million-year-old species of egg-laying mammal that has been assumed to be ...