Pregnant Chimp Mystery

It's both a surprise and a mystery. At Caddo Parish's Chimp Haven, where retired male chimpanzees all get vasectomies, a female chimp has turned up pregnant. Chimp Haven managers knew something was up when they could not find one of their chimps last week.

Teresa, who's been at Chimp Haven for the past year and a half, was missing during the morning rounds. Later, she appeared with a newborn chimpanzee in her arms.

"Well, we were all just a little bit surprised when we heard the news," said Linda Brent, a spokeswoman for Chimp Haven.