Hammerhead shark reproduces without mating

Virgin birth

A hammerhead shark reproduced without mating in 2001, marking the first time that asexual reproduction has been observed among sharks, according to a new report. Scientists say their analysis of DNA from the baby shark, which died not long after it was born, shows "there was no male contribution," The New York Times says.

Study: Sharks can have 'virgin births' - USATODAY.com
Female Shark Reproduced Without Male DNA, Scientists Say - New York Times
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