The pursuit of reproductive success in the animal kingdom sometimes calls for extreme measures. But few creatures can match the hermaphrodite flatworm, which scientists have discovered can reproduce by injecting sperm into its own head. The tiny aquatic worm, Macrostomum hystix, is able to self-fertilise because it produces both eggs and sperm.

Topics:  macrostomum   flatworm   head   inject sperm   eggs   reproduce   

 

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