The Gecko is the only lizard and reptile that speaks or barks. Many species are well known for their specialized toe pads that enable them to climb smooth and vertical surfaces, and even cross indoor ceilings with ease. There are an estimated 2,000 different species of geckos worldwide, with many in existence still yet to be found. Just recently a 100-million-year old gecko species was discovered in the Eastern Himalayas.
Eastern Bluetongue (Tiliqua scincoides scincoides) / With their distinctively coloured tongues and a quiet nature, these lizards are a common sight in many Australian backyards, and can reach 60cm in length. They are slow moving and are not aggressive. When threatened these lizards will open their large mouths and stick out their broad bright blue tongue which contrasts against the pink of the mouth.
A flying dragon lizard avoids danger by opening two large, winglike flaps of skin and gliding from tree to tree. The lizard steers and brakes with its tail. The large flaps are supported by elongated ribs which they can expand and retract. The wings are brightly colored and for this reason they are also called the "butterfly lizard".