There is only one species of chameleons found in the Indian subcontinent, scientifically known as Chamaeleo zeylanicus. The term 'chameleon' is a combination of two Greek words, 'Chamai', meaning 'on the ground/earth' and Leon, meaning 'lion'. Thus, 'chameleon' means 'earth lion'. The foot structure, eyes and tongue of all the chameleons are the same.