Understandably, an island the size of Saba does not support any large mammals. The only native mammals are several species of bats. Saba has one endemic Anole lizard species (found on Saba only and nowhere else in the world), which is quite common. Also common is the Red-bellied racer snake, a harmless, non-poisonous snake that occurs on Saba and St.Eustatius only. The Common Iguana is not abundant but can be seen occasionally on the walls along the road and on the slopes towards Spring Bay.