Some species in the animal kingdom will eat just about anything. Others have much stricter diets. This arctic predator falls into the latter category, subsisting on a single, protein-rich food source.

From outwitting predators to raising a family, speed can boost a bird’s chances of survival. Learn about the fastest bird ...

Photographers recently captured images of a European Robin in the Yingze Park in Taiyuan, Shanxi province, marking the first ...