Earth looked much different not just millions, but even decades and centuries ago. Many animal species that once existed are ...

Here in the United States, the deadly risks posed by wildlife can pale in comparison to developing nations around the world ...

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 ...

Ancient magnetic fossils reveal that animal navigation using Earth’s magnetic field may have evolved far earlier than ...

Animal groups show how simple actions create shared intelligence, shaping technology, health research, and crowd safety.

A model of Laika inside a replica of Sputnik 2 at the Central House of Aviation and Cosmonautics in Moscow. | Mladen Antonov/AFP via Getty Images In March, I visited the Lowell Observatory — the ...