Biodiversity protects amphibians against diseases and deformities

The richer the assortment of amphibian species in a pond, the more protection that community of frogs, toads and salamanders has against a parasitic infection that can cause severe deformities.

2 years later, fish sick near BP oil spill site

Two years after the drilling-rig explosion that touched off the biggest offshore oil spill in U.S. history, scientists are beginning to suspect that fish in the Gulf of Mexico are suffering the effects of the petroleum.