Add Yahoo as a preferred source to see more of our stories on Google. "Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Transform your time in the water ...

Cuvier's beaked whale breaks record with almost 4-hour dive Cuvier’s beaked whales have flipper pockets, a special adaptation which allows them to tuck their flippers in while diving.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Transform your time in the water with a solid set of fins (that is, flippers for the uninitiated). No ...