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Manatees and dugongs: proof sailors at sea way too long will call anything a mermaid.

means An adjective (or noun for the order Sirenia) describing manatees, dugongs, and their relatives — slow, gentle, aquatic mammals that graze on sea grass.

from Traces back to the Greek Seirēn, the mythical mermaid-like creatures who sang sailors to their doom. Naturalists borrowed the name for this order of plump, whiskery sea mammals, supposedly because exhausted, moon-eyed sailors glimpsed them bobbing at the surface and mistook them for sirens — a tribute less to the animal's beauty than to how long those sailors had been at sea.

closest relative
elephants, not dolphins or seals
diet
strictly plants, hence the nickname sea cow
buoyancy trick
heavy bones act as built-in diving weights
myth origin
named after sirens despite zero resemblance
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