
In the 1980s, there were less than two dozen California Condors left. Today, more than 500 exist in the world, thanks to the efforts of conservationists.
(Image credit: National Park Service/AP)

In the 1980s, there were less than two dozen California Condors left. Today, more than 500 exist in the world, thanks to the efforts of conservationists.
(Image credit: National Park Service/AP)