It was likely already endangered 300 years ago, after the Spanish conquest of the Aztecs concluded and the lakes where it ...

A bull shark, one of three species that account for the majority of serious bites, had nibbled around 15 inches of Zhang's leg.

A Tucson preschool teacher spotted a developmental quirk in a little boy who was then able to get early treatment for ...

Developed at the Children's Hospital of Philadelphia (CHOP) and called Zynteglo, the medicine uses the patient's own stem cells to cure them.

While driving through rural Iowa, the Massimilla family experienced a once-in-a-lifetime wildlife encounter—spotting two rare albino deer.