Oldest snow monkey in North America celebrates 29th birthday

Nikko turned 29 years old this week, making him the oldest snow monkey in North America. He came to a zoo in Minneapolis, Minn., in 2001.    Since then, he has been one of the dominant males. Zoo employees believe his laid-back personality has helped him survive almost twice as long as a typical male.    There are only three other living snow monkeys in the world older than Nikko.
September 28, 2012 3:57:17 AM PDT