Baleen whales (Mysticeti) are vacuums of the sea. The blue whale, which is one of 12 species of baleen whales, is the largest animal in the world—AKA the biggest sea vacuum. It fuels its 200-ton body by eating tiny crustaceans called krill, which get filtered through the blue whales’ baleen. New research suggests that…
Source: Gizmodo – The Wild Reason Whales Got So Freakishly Big