During a routine analysis of biological samples from two California condors in the San Diego Zoo Wildlife Alliance’s managed breeding program, scientists confirmed that each condor chick was genetically related to the respective female condor (dam) that laid the egg from which it hatched. However, in a surprising twist, they found that neither bird was genetically related to a male—meaning both chicks were biologically fatherless; and accounted for the first two instances of asexual reproduction, or parthenogenesis, to be confirmed in the California condor species.
During a routine analysis of biological samples from two California condors in the San Diego Zoo Wildlife Alliance’s managed breeding program, scientists confirmed that each condor chick was genetically related to the respective female condor (dam) that laid the egg from which it hatched. However, in a surprising twist, they found that neither bird was genetically related to a male—meaning both chicks were biologically fatherless; and accounted for the first two instances of asexual reproduction, or parthenogenesis, to be confirmed in the California condor species.