Surprise, California condors can reproduce without having sex: San Diego Zoo
A rare and endangered California condor lands on a ledge in Marble Gorge, east of Grand Canyon National Park March 22, 2007 west of Page, Arizona. - David McNew/Getty Images North America/TNS

SAN DIEGO — He’s got his mother’s eyes, and his father’s … nothing. A scientific team led by the San Diego Zoo Wildlife Alliance announced Thursday that California condors can reproduce without having sex. Researchers made the finding after genetic tests showed that two condors born in captivity didn’t have fathers. Yes, fathers. And that’s not a misspelling of “feathers.” This phenomenon, known as parthenogenesis, has been seen in certain insects, fish and reptiles. There have been a few cases among birds, too. But no one knew until now that female California condors could have offspring with...