George asks:

>A possible (to my knowledge) pathway to that would be the existence of
>oscilators in our brain.
>
>Can any biologist or other knowledgeable person in that area provide
>some knowledge/summary on these oscillators and whether they exist in
>other animals' brains?

Circadian (meaning "about a day") rhythms controlled by
endogenous oscillators
are ubiquitous in the Metazoa, but they occur in plants as well. A collection
of recent references to circadian rhythms in plants appears at:

   http://www.hort.purdue.edu/rhodcv/hort640c/referen/crhythm.htm

For more information on similar oscillators in animals, go to Google and type
"circadian rhythm xxxxx", where "xxxx" is any animal
group that you care to
name, such as "ant" or "bat" or "flatworm."

If you're going to evolve under a yellow sun, resting on a spinning planet that
rotates once every 24 hours, you're going to develop mechanisms to accurately
predict the day/night cycle, no matter what kind of a beast you are.

Wirt Atmar
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