• Are night owls generally more intelligent than other people? http://www.quora.com/Are-night-owls-generally-more-intelligent-than-other-people 57 comments 9/7/2010

• Some people are night owls & others are morning larks. What makes the difference may be their levels of general intelligence. http://www.psychologytoday.com/blog/the-scientific-fundamentalist/201005/why-night-owls-are-more-intelligent-morning-larks 83 comments 24/10/2010 cogsci