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Energetic Sites
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Coming Into Existence |
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Winged disc Aztec feedback [ link to www.bbc.com (secure)] California condors: Virgin births discovered in critically endangered birds
US wildlife researchers have discovered that two California condors, a critically endangered bird, gave birth without any male genetic DNA. The discovery that condors are capable of virgin births - formally called parthenogenesis or asexual reproduction - surprised scientists. Virgin births have been recorded in other bird species, as well as lizards, snakes, sharks, rays and other fish. Only about 500 California condors remain in the US south-west and Mexico.
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