Re: Dragonflies and birds share migration strategies

[Dora Smith <villandra@austin.rr.com>]

I don't think that practical similarity in migration strategies between 
birds and dragonflies proves the point.   I think that would be convergent 
evolution based on the adaptive advantage of certain strategies.  Plenty of 
animals between dragonflies and birds don't migrate and have never migrated.

However, it is known that some kinds of dinosaurs of the sort that birds 
belong to both formed large flocks and migrated.  The ones I am thinking of 
migrated in large flocks up and down the Pacific seacoast through 
California.

Yours,
Dora Smith
Austin, TX
tiggernut24@yahoo.com
----- Original Message ----- 
From: "Guy Leahy" <xrciseguy@sbcglobal.net>
To: <dinosaur@usc.edu>
Sent: Saturday, May 13, 2006 4:33 PM
Subject: Dragonflies and birds share migration strategies


> Another interesting speculative question this brings
> up would be: did pterosaurs migrate?  :-)
>
> http://www.sciencedaily.com/releases/2006/05/060511081713.htm
>
> Guy Leahy



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