The reticulated python has a striking net-like pattern of markings, made up of darker triangular shapes along its sides, and patterns of yellow or cream running down its back. The head is largely unmarked, apart from a thin black stripe running across the top.
Reticulated pythons are strong swimmers, although they prefer to spend most of their time on land, hiding in trees. They are nocturnal, and usually breed during the winter months. Large eggs are laid in hollow trees or burrows, then the female coils around them and shivers to keep the eggs warm. Once the baby snakes are hatched, however, they are left to fend for themselves.