werner@aecom.yu.edu (Craig Werner) (07/18/90)
In article <103265@tiger.oxy.edu>, max_jedroom@oxy.edu (Jedidiah Jon Palosaari) writes: > Related to the idea of humans having a 25 hour cycle due to their having > to be alert at dusk because of active predators, does anyone know of any > studies done on animals in a lab to determine *they're* circadian rhythem > without natural cues? In general, animals that are active during the day have circadian rhythms that exceed 24 hours, whereas animals that are nocturnal, such as rodents (rats, mice, guinea pigs), have rhythms that are less than 24 hours. -- Craig Werner (future MD/PhD, 5.5 years down, 2.5 to go) werner@aecom.YU.EDU -- Albert Einstein College of Medicine (1935-14E Eastchester Rd., Bronx NY 10461, 212-931-2517) "We live in interesting times..."