Males of this species can be longer than your hand and carry three forward-pointing horns, which they use in slow-motion contests over territory. Females are smaller and usually hornless. Like all chameleons they move one deliberate step at a time and catch insects with a tongue longer than their body.
The Usambaras are the best place in Tanzania for reptiles and amphibians, and a guided night walk from Amani usually finds several chameleon species, tree frogs and the odd bush viper, all at a safe distance.










