More than half of bird species in the U.S. are in decline ... use to be found in the southern U.S. and Cuba, is likely now extinct -- with the last confirmed sighting occurring in 2004 in east ...

This year we bid farewell to two lost frogs, the Chinese paddlefish, a plant from New Hampshire, and many others.

President Nixon signed the Endangered Species Act, revolutionary legislation that followed a century of abuse of wildlife.

It found nearly half of all shrub species in Europe were threatened with extinction, as were a fifth of terrestrial ... and are an important food source for birds, mammals and at least in France and ...