Re: Campbell's even crazier than a MANIAC? (archeopteryx

[Jeff Hecht <jeff@jeffhecht.com>]

Do you define "all" as all Aves, or all Neornithes? That's an important 
question because we don't know why other Aves did not survive past the end of 
the Cretaceous. A difference in flight capabilities might explain the 
difference, or perhaps the differences lie in other capabilities which are hard 
to spot in the fossil record, such as metabolism. 

At 8:02 PM -0400 9/24/08, tholtz@geol.umd.edu wrote:
>> Perhaps all the Cretaceous birds were not better flyers than
>> tinamous and chickens??.
>
>I think that this is really closer to the truth than most people consider
>at the present...
>

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Jeff Hecht, science & technology writer
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