It's Shark Eat Shark in South Korean Aquarium00:47
8-year-old female sand tiger shark is said to have eaten her smaller companion, a 4-foot long male large banded houndshark, bite by bite.
Dog food recalled over dangerous levels of vitamin D00:47
George H.W. Bush's dog Sully visits former president in Capitol Rotunda01:01
Meet the Butterfly Lady of Fire Island, and see how she cares for migrating monarchs07:22
3,000-pound steer is too big for the slaughterhouse00:34
Hundreds of volunteers refloat stranded killer whales in New Zealand01:00
Dozens of stranded pilot whales die on beach in New Zealand00:57