If men think finding a nice partner to settle down and raise children with is tough, consider the plight of the male Australian redback spider. Instead of personality conflicts, spats over in-laws and financial worries, imagine that immediately after the first time you have sex, your partner — who is 100 to 200 times your body weight — will eat you alive.
http://www.news.utoronto.ca/bin6/060405-2183.asp
http://www.news.utoronto.ca/bin6/060405-2183.asp