TIL that roosters are genetically programmed to crow every morning just before dawn. When secluded in a dimly lit room they still crow just before dawn.

http://news.discovery.com/animals/roosters-are-pre-programmed-to-crow-130318.htm



Submitted March 22, 2015 at 12:43PM by BuddyKind87 http://www.reddit.com/r/todayilearned/comments/2zvw24/til_that_roosters_are_genetically_programmed_to/