Photo of hammerhead shark courtesy of Google Images
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. Captive shark had virgin birth (more)
BBC AUDIO:
Captive shark's virgin birth
Mark Alexander
