Re: possible role of echolocation in K-T survival

[John Bois <jbois@umd5.umd.edu>]

On Sat, 7 Mar 1998, Matthew Troutman wrote:
>      That certainly is a unique hypothesis. However, this cannot be a 
> factor for all survivors through the K-T. No birds that I know of    
> (besides the oilbird?) echolate. 

Again, the interesting question of how come so few dinosaurs (avian and
otherwise) manage to exploit the nocturnal niche.  The reasons for this
surely (I would think) go back to small brain size or inferiority of light
collection--or some such important constraint.