A Strategic Arms Race Among Birds
10,000 Birds
FEBRUARY 18, 2014
In the former, a female lays her fertilized egg in the nest of another species, in the hopes that her offspring will be raised by the unwitting hosts. In the latter, three or more adult individuals contribute to the raising of offspring. Science (New York, N.Y.), doi:10.1126/science.1240039. Somveille, M., Heinsohn, R.,
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