Donna Kalil, one of Florida’s most famed snake hunters, usually hates seeing invasive pythons get away, but on a postcard-pretty morning a few days before Christmas, she teamed up with researchers ...

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

If they reach the ecosystem's carrying capacity in the Everglades, the pythons will spread, and that likely means into ...