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Puppet parents raise troubled condors

Captive-reared birds struggle to reconnect with their own species.

"Are you my mummy?" Credit: Ken Bohn, Zoological Society of San Diego.


  1. Utt, A. C., Harvey, N. C., Hayes, W. K. & Carter, R. L. Zoo Biol. Doi: 10.1002/zoo.20151 (2007).

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Californian condor

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Kaplan, M. Puppet parents raise troubled condors. Nature (2007).

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