Wildlife groups have condemned the killing of a collared lion, part of a research project in Zimbabwe, by a trophy hunter.

When you think about climate change in our oceans, you may picture coral bleaching, melting sea ice, or extreme weather ...

A 100-pound tropical fish washed up on an Oregon beach. Experts said the fish was found far from its natural habitat, making it a surprising find. The opah, or moonfish, will be studied as little ...