New Caledonian Giant Gecko (Rhacodactylus leachianus)

The New Caledonian Giant Gecko is the largest gecko species on the planet, with adults reaching up to 17 inches in length. These types of geckos have robust bodies and large heads, with unique granular skin covering them. 

Their color palette ranges from greens to browns, often decorated with patterns of varying shades, enabling them to blend into tree bark and foliage.

This type of gecko is a nocturnal predator that feeds on insects, fruits, and small mammals, occasionally indulging in cannibalism. 

They also communicate through growling, barking, and hissing, which are crucial, especially during the mating season.