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Re: Archaeopteryx and Parental Care



In a message dated 2/5/02 4:46:44 PM Pacific Standard Time, 
dinoland@lycos.com writes:

<< Anyhow, Colleen Farmer* presented many data that support her hypothesis 
that extensive parental care in avians provided the initial push for the 
evolution of avian endothermy.  >>

This might well be one of the reasons that endothermy persisted in avians, 
but you gotta >have< a certain level of endothermy >before< it can find a use 
in brooding. It certainly cannot account for the >initial appearance< of 
endothermy in avians. Endothermy first, brooding afterward.