A genus of toothed whales, commonly known as pilot whales, characterized by their rounded, bulbous heads.
From Latin 'globius' (rounded) and Greek 'kephalos' (head), literally meaning 'round-headed.' Named for their distinctively bulbous foreheads.
Pilot whales have that bulbous head because it contains a large melon organ filled with oil that they use for echolocation—it acts like a biological sonar system to navigate and hunt in the deep ocean!
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