Puma returns to rain forest after 20 years in chains

Peru protects vast 'Yellowstone of the Amazon'

The Dutch town of Monster built a bridge that doubles as a bat habitat

Why did Florida end its black bear hunt early?

8 facts about the misunderstood house spider

Earth gets a surge of new ocean sanctuaries

Colorful 'ghost' bird finally caught in photos

Vinegar is suddenly sweet for Great Barrier Reef

Which U.S. states have the most endangered species? [Infographic]

See 'Rocksy' the raccoon use a rock to order food

Why hummingbirds like to live near hawks

10 important wildlife corridors