Denison resident Bill Daley said he sees raccoons, possums and armadillos in his yard, but a non-native snake was a first.

California’s exotic pet rules mix some of the nation’s toughest bans with surprising permissions. Ferrets and hedgehogs are off-limits, but zebras, camels, and even ostriches can be owned if you meet ...

Researchers are using tracking collars on opossums to find the invasive Burmese pythons in Florida. We explain how it's done.