Hagfish: The Jawless "Slime Eel"

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This eel-like creature is an anatomical anomaly. It's the only known living animal that lacks a backbone and jaw but still has a skull. Hagfish secrete a goo when attacked that expands when combined with water. The predator is then choked by the expanded goo.

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Key Facts In This Video

  1. The hagfish is the only known living animal with a skull but no spine. 00:20

  2. The hagfish does not have a jaw, but rather tooth-like projections. 00:42

  3. The hagfish secretes a micro-fiber slime that expands when combined with water and chokes its attackers. 00:59

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