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Shark is a single mother, literally.(Front)
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The Virginian Pilot
- Article date:
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May 23, 2007
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Copyright informationCOPYRIGHT 2007 The Virginian Pilot-Ledger Star. All rights reserved. Reproduced with the permission of the Dialog Corporation by Gale Group. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Byline: SHAWN POGATCHNIK
DUBLIN, Ireland -- By SHAWN POGATCHNIK
The Associated Press
DUBLIN, Ireland - Female sharks can fertilize their own eggs and give birth without sperm from males, according to a new study of the asexual reproduction of a hammerhead in a U.S. zoo.
The joint Northern Ireland-U.S. research, being published today in the Royal Society's peer-reviewed Biology Letter journal, analyzed the DNA of a shark born in 2001 in the Henry Doorly Zoo in Omaha, Neb. The shark was born in a tank with three potential mothers, none of whom had contact with a male hammerhead for at least three years.
Parthenogenesis
Analysis of the baby shark's DNA ...
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