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Re: Evolution of sleep (joke)
I forgot about jokesters and new parents too. I am assuming from the
responses to date, no one is aware of vertebrates that do not go
through some form of brain inactivity related to sleep and that there
is an obvious evolutionary bias toward animals maintaining sleep as a
recovery period. This whole thread started out as a discussion about
hibernation providing a safe passage across the K/T boundary. I am
thinking that eliminating stress would be a survival strategy that
would provide additional energy reserves for other purposes. Both
short term naps and long term hibernation suffice for that function. I
suspect that along with there not being one cause for the extinction of
large dinosaurs at the K/T, there is not one cause for the survival of
other groups through the K/T. Nature is full of experiments and what
ever one works, gets passed on.
On Mar 17, 2005, at 4:00 PM, Richard W. Travsky wrote:
On Thu, 17 Mar 2005, Tim Williams wrote:
Frank Bliss wrote:
Is there any vertebrate creature that doesn't sleep?
A grad student?