A bowhead's mouth is the biggest of any animal, nearly a third of its body, and its baleen plates are the longest of any whale.

Whale Week · day 7 of 7
Its mouth is the biggest of any animal, nearly a third of its body length.
Its massive triangular skull is used to break through Arctic ice.
Some bowheads can live past 200 years.
Bowheads sing long, complex songs in breeding season.
Less than half an hour after birth, calves can swim by themselves.
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