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Natural Phenomena

Mass Animal Stranding

Biological and Seasonal Phenomena

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An event in which a large number of marine animals, most often whales or dolphins, become stranded together on a beach or in shallow water, sometimes numbering in the hundreds. Proposed causes include disorientation from underwater noise pollution, illness affecting a pod's navigational sense, following a sick or injured leader onto shore, and unusual coastal topography that confuses the echolocation species such as pilot whales rely on.

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Certain red tide events release biotoxins, such as domoic acid or brevetoxin, that are a documented direct cause of mass strandings of marine mammals and seabirds that ingest contaminated prey.

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