Sperm Whale (67 feet) Sperm whales are the largest toothed whales, reaching lengths of up to 67 feet (20.42 meters). Oak trees or pine trees grow to about the same height.

The sperm whale is the world's largest predator and dives deeper than any other mammal - up to depths of over 2,000m. Its call reaches 220 decibels, the loudest made by any creature on Earth ...

Enjoy these lesser-known facts about the humpbacks of Hawaii ... Port cities like Lahaina and Honolulu served as staging sites for sperm whale hunting operations in Japan and the North Pacific ...

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 sperm whale spotted entangled in ropes off Skye last week has become stranded on a shore off the nearby island of Raasay. British Divers Marine Life Rescue (BDMLR) managed to cut five ropes from ...