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2016-3-1 UPDATE
Fiddler Crab
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- Courtship
Collective waving
The uca lacteal, or milky fiddler crab, inhabits mudflats near the river mouth. The males have a grossly oversized claw that is conspicuously swung back and forth. This behavior, known as waving, is thought to be a form of courtship. [5’57″/Subtitles: English]
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