Sperm with hooks

  • 1
  • By Du Cheng


Sperm with hooks!! I guess make sense when we say: hookup. These are not from the movie alien, they are from a rat. Sperm come in all different shapes and sizes in different species. The differential in sizes and shapes have evolutionary significance. Taken with LabCam on a microscope with Differential Interference Contrast (DIC). 

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