What is the difference between ball pythons burmese pythons reticulated pythons and tree pythons?

Ball pythons, or Royal Pythons, are smaller snakes (4-6 feet) and are commonly kept as pets.

Burmese Pythons are much larger and thicker than BP's and can grow up to around 18 feet (more commonly around 12-15)

Reticulated Pythons are similar to Burmese Pythons but are normally thinner, longer and more aggressive than the Burmese.

Green Tree Pythons are about the same size as Ball Pythons but are from New Guinea and dwell in trees while BP's are from Africa and are ground-dwellers. Both feed on small mammals.