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First Known Case of Parthenogenesis Discovered in Crocodiles

  • A female crocodile living alone in a Costa Rica zoo had a virgin birth in 2018.
  • Scientists discovered a crocodile was able to lay eggs and reproduce asexually without a male through parthenogenesis.
  • Genetic testing confirmed the fetus that developed in one egg was genetically identical to the mother crocodile and lacked any paternal DNA.
  • This discovery suggests that other reptiles like dinosaurs may have also been capable of reproducing through parthenogenesis.
  • Parthenogenesis is a form of asexual reproduction where females can produce offspring without mating with a male.
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