Hammerhead sharks can reproduce without having sex

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.

The type of reproduction exhibited had been seen before in bony fish but never in cartilaginous fish such as sharks.

read the full story at BBC news

http://news.bbc.co.uk/1/hi/sci/tech/6681793.stm


Contributed by Tim Hochgrebe added 2007-05-24

Login or become a member to join in with this discussion.

directory

Seabob SalesSeabob Sales
Official dealer of SEABOB Luxury Seatoys by CAYAGO. Addictive fun on and underwater. Dive in and discover. Made in Germany.

Articles

SpottySpotty
Saltwater dripped down the inside of my mask, forming a comfortable puddle just below my nose. Beyond the puddle, the blue water of the Gneerings disappeared, with the only other activity visible being my buddy's bubbles rising around me. I took a deep, cool breath.
Underwater Card 2