Research shows that cockroaches are morons in the morning


While, in the past many studies have shown that our biological clock does control the rate of learning, this is the first time that this phenomenon has been observed in insects. The cockroach, it seems, is a dunce in the morning, and is much sharper in the eveining.
http://technology.newscientist.com/article/dn12706-satellites-capture-evidence-of-burma-crackdown-.html