Read the stories behind how the photographers captured these stunning winners of the 2013 photo contest, including the recepient of the Grand Prize.
Try these tips for keeping these clever thieves from raiding your feeders
Polar Bears on the Edge
See these amazing images that one photographer captured during 13 years of photographing in Alaska
On the Trail of the Ghost Cat
Researchers studying the elusive movements of cougars are learning that the cats' behavior may reflect changes in their habitat
See what was balancing on a photographer's spoon.
What is This?
Test your wildlife knowledge. Can you guess what animal this is?