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Mermaid’s purses are the egg cases of some sharks, rays and skates. Before a female lays an egg, her special ‘shell gland’ surrounds it with a case made of protein. The egg case is tough and well camouflaged. The little tendrils on mermaid’s purses help them attach to seaweed.

Details

  • Title: Mermaid's purse
  • Subject Keywords: Eggs
  • Type: Egg case

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