Why do hammerhead sharks have hammer-shaped heads?
A great hammerhead shark’s two eyes can be 3 feet apart on opposite sides of its skull. Ken Kiefer 2/Image...
Wildlife
Human garbage is a plentiful but dangerous source of food for polar bears finding it harder to hunt seals on dwindling sea ice
Scenes like this one are becoming increasingly common in the Arctic. ALEXANDER GRIR/Contributor/AFP via Getty Images Thomas Scott Smith, Brigham...
Making room for wildlife: 4 essential reads
Making room for wildlife: 4 essential reads Photographing a bear in Yellowstone National Park at a distance the National Park Service...
