BBC NEWS | Science/Nature | Captive shark had 'virgin birth'

BBC NEWS Science/Nature Captive shark had 'virgin birth': "Female hammerhead sharks can reproduce without having sex, scientists confirm.
The evidence comes from a shark at Henry Doorly Zoo in Nebraska which gave birth to a pup in 2001 despite having had no contact with a male.
Genetic tests by a team from Belfast, Nebraska and Florida prove conclusively the young animal possessed no paternal DNA, Biology Letters journal reports. "