The emperor penguin has been declared an endangered species as climate change pushes the icon of Antarctica a step closer to extinction, the global authority on threatened wildlife announced Thursday.

Climate change is pushing two iconic Antarctic species — the emperor penguin and the Antarctic fur seal — toward the brink of extinction, a new assessment finds. The new listings, published Wednesday ...

With each passing year, species across the United States face an uncertain future. As habitats continue to be destroyed, climate change destabilizes weather patterns, and invasive species take over ...