Rooster Makes the Loudest Alarm Clock to Wake Sleeping Teen and People Are Cracking Up originally appeared on PetHelpful. If you’ve ever been around a crowing rooster, you know just how loud they can ...

The rooster's morning cock-a-doodle-doo is driven by an internal clock, finds new research, suggesting the male chickens really know the time of day. The study, detailed Monday in the journal Current ...