What about Jaguars?
http://www.cnn.com/2008/TECH/science/05/05/jaguars.fence/index.html#cnnSTCTextThe rancher took what's believed to be the first photo of a live jaguar in the United States. But it wasn't his last. In 2006, some 40 miles away, Glenn and his hunting party again cornered a jaguar -- a different one.
Jaguars, an endangered species, have a breeding population in northern Mexico. Scientists believe there are no more than 120 left in the wild there.
It's believed that since 1910, the cats are only visitors north of the border. They have been virtually unstudied here until recently.
