The Andean condor is the world's heaviest soaring bird ... and they need to fly to find food. "They feed on carcasses, but these don't necessarily appear in places that are ideal for condors ...

Hares, the gray fox's favorite food, actually were brought to South America in the late 19th century as stowaways on European merchant ships. The Andean Condor Ascending from their clifftop nests ...

The Andean condor is considered threatened but is in far better shape than its California cousin. Reintroduction programs are working to grow populations of these South American birds.

Birds of a feather flock together, and when it comes to innovation in renewable energy, nature often leads the way. The Andean condor, one of the world’s ...