Cetaceans - Bowhead Whales (Balaena mysticetus)
Bowhead whales are found only in the Northern Hemisphere, in Arctic waters. They are large, rotund black whales, with enormous heads that are about 1/3 of the total body length of adult whales. Bowhead whales accumulate scars on their bodies from their encounters with ice. Scientists use these marks to identify individual whales. They are up to 65 feet (19.8 meters) long.
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