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Do goldfish yawn?

goldfish.jpgQuestion

Do goldfish yawn? My niece thinks that our goldfish always looks like it's yawning.
Edin, Uxbridge

Answer

** Definitive **
Name: Saz, Watford
Qualification: Been keeping fish for 16 years
Answer: Firstly, fish look like they are yawning, which is just part of their breathing. Occasionally, fish open their jaws as far as they can possibly go and it looks exactly like a human yawn. But in fact, ít's actually them just stretching their jaw. They don't breath air, so they've got no reason to yawn.

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