Climate Change
Coral reef, © Jim Maragos/USFWS
Polar bear, © Tom Schneider

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Fact Sheet
Known as "prairie ghosts" because they are so elusive, the Sonoran pronghorn (Antilocapra americana sonoriensis) is the fastest land mammal in North America. Smaller and lighter in color than other pronghorn subspecies, it is uniquely adapted for survival in harsh arid conditions.
Fact Sheet
With a coat that changes color and thick fur even on their paws, Arctic foxes are well adapted to their habitat’s extreme cold.
In the Magazine
Good news for polar bears; Farewell to finning