2. Burmese phyton
Although smaller than green anaconda, Burmese python is sometimes considered to be more dangerous. A 5-meter long Burmese python can easily overpower an average-sized human and this species is especially dangerous to small children. It is now considered as a serious invasive species in the Florida Everglades, with a population of up to 180,000.
In October 2005, remain of a 1.8 meter alligator was found inside a carcass of Burmese python. It was believed that the alligator tried to find its way out by decapitating the snake from inside.