Pythons can tolerate saltwater and freshwater and have been observed swimming in Florida Bay and Biscayne Bay.

Researchers have discovered they can consistently measure reptiles' pulse rate in an easy-to-reach spot on the back of the head, and that pulse rate corresponds to the heart rate in healthy reptiles.

California’s diverse climate and sprawling urban areas have made the western state an unexpected hotspot for non-native ...

Green anacondas can grow to almost 9m in length and weigh more than 250kg – that's about the weight of a male grizzly bear.