Researchers say genetic testing confirmed that 2 male chicks hatched in 2001 and 2009 from unfertilized eggs were related to their mothers. Neither was related to a male.
Researchers with the San Diego Zoo Wildlife Alliance said genetic testing confirmed that two male chicks hatched in 2001 and 2009 from unfertilized eggs were related to their mothers. Neither was related to a male.
The researchers said they believe it is the first case of asexual reproduction in any avian species where the female had access to a mate. With 10-foot wingspans, California condors are the largest flying birds in North America. They once ranged throughout the West Coast. But only 22 survived in the 1980s when the U.S. government captured them and placed them in zoos for captive breeding. About 160 were bred at the San Diego Zoo and Safari Park.
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