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Complexity Digest 2008.52 - 14.01
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28-Dec-2008

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Avian Paternal Care Had Dinosaur Origin, Science
 









Excerpts: The large egg clutches of troodontid and oviraptor dinosaurs and
evidence that fossils of brooding dinosaurs were males shows that paternal care
was ancestral to birds.  The repeated discovery of adult dinosaurs in close
association with egg clutches leads to speculation over the type and extent of
care exhibited by these extinct animals for their eggs and young. To assess
parental care in Cretaceous troodontid and oviraptorid dinosaurs, we examined
clutch volume and the bone histology of brooding adults.
Source: Avian Paternal Care Had Dinosaur Origin[
http://www.sciencemag.org/cgi/content/full/322/5909/1826 ], David J. Varricchio,
Jason R. Moore, Gregory M. Erickson, Mark A. Norell, Frankie D. Jackson, John J.
Borkowski, Science : 1826-1828., 08/12/19

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