The braying of her donkeys on a hot afternoon shows they are in need of a drink, and Pauline Onyango knows exactly what to do.She has two donkeys that help her carry firewood and water from Lake ...

The coypu has become a true nightmare for European ecosystems. This exotic, harmless-looking animal has rapidly invaded many ...

A committee of experts that advises the Centers for Disease Control and Prevention is critical in setting national vaccine ...