People often consider evolution to be a process that occurs in nature in the background of human society. But evolution is ...

Insects and lab-made animal protein have the potential to be far less damaging to the environment. And because pets tend to ...

The Mexican gray wolf is not fully recovered. It still roams only a small patch of its former range in the Southwest—even though it once lived across much of Arizona, ...

Anxiety, the psychological and physiological state characterized by an anticipation of potential threats and a heightened ...

In the past, many scientists believed that only mammals and birds could feel or think in complex ways. Reptiles, fish, and ...