Wildlife conservation efforts in the Patagonia region of Argentina have been so successful that rebounding populations of ...

A natural experiment in a national park in Patagonia shows how the return of a large predator can reshape an ecosystem.

Penguins throughout the southern seas have to worry about being picked off by seals or hunted by orcas. On land, they can ...

The Arctic has changed dramatically in the past 20 years, a new report shows, as temperatures skyrocket and ice rapidly melts ...

Warming temperatures appear to be driving genetic mutations in some polar bears to help them survive the shifting climatic ...