Covered in sharp defenses from every angle, this incredible animal is built to keep predators away. Coyote Peterson gets ...

Many members of the animal kingdom can detect the subtle undulations of Earth’s magnetic field. Relying on a hidden ...

At least part of the answer appears to be hiding inside a seemingly random organ. Immune cells inside pigeon livers called ...

In all, 75% of Earth's species went extinct, including the nonavian dinosaurs. So how did some animals ‪—‬ including species ...

During their reign of dominance on Earth for more than 160 million years, dinosaurs evolved into many diverse species. Although some species were vegetarian and harmless, others were fierce carnivores ...

The Canadian fossils belong to the White Sea group. But they appear to be around 567 million years old – 5 to 10 million ...

Scientists have peered inside the skull of a 380-million-year-old Antarctic fish that was closely related to the first animals to walk on land, revealing surprising clues about how life began its move ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

Trove of fossils discovered in Canada sheds light on "when life first became large, complex and unmistakenly animal." ...

They looked like traces left behind by tiny creatures, but were most likely microbes.

From butterflies to blue whales, corals and worms, Earth is home to an incredible diversity of animals. How all of these ...