Whales are a group of mammals that live in oceans. They include some of the largest animals on Earth. The blue whale is the ...

Read more about sperm whales: http://j.mp/sOSais Watch underwater footage of the mammal and hear its strange clicking sounds that are crucial to their survival What ...

A great white shark's encounter with boaters off the Sarasota, Florida coast near a sperm whale carcass was caught on video.