Read the following passage and then answer the questions.
Pythons that were purchased as pets and then became too much for their owners to handle have been released in Florida. This is not a small problem; pythons . have been very successful at reproducing in Florida, and some scientists estimate that there could be more than 100,000 pythons in the state. They are skilled predators and are disrupting the ecosystem by eating too much prey. They don't have any natural predators that kill them. Florida hunters are encouraged to kill pythons to try to reduce the number of pythons that are loose in the wild.
a. Based on the information in the passage, how should pythons be classified in the U.S.?
(1 point)