Pythons are spreading north in Florida, adapting to cold by using burrows. Scientists warn Brevard County is at risk.

Marburg virus disease (MVD) is a severe and often fatal hemorrhagic disease in humans caused by the Marburg virus. It is ...

In Texas, biologists have documented an extraordinary bird — the natural hybrid offspring of a green jay and a blue jay. Once separated by millions of years of evolution and distinct ranges, the two ...