Named after Scottish zoologist and founder of the South African Museum of Natural History Andrew Smith, Smith's gecko (lat. Gekko smithii) is considered one of the largest geckos in the world and grows up to 350-360 mm in length. It is often referred to as the big wood gecko or the barking gecko, as the harsh "tok-tok-tok" sounds it makes are very similar to the barking of a dog.
These massive and noisy reptiles inhabit the rainforests of Southeast Asia, from southern Thailand and Singapore to India and Sumatra. Their most famous habitat is the Malaysian island of Penang, called the "Pearl of the East".
The powerful thick claws of the Smith gecko help it to cling and hold onto even the most durable and tough bark of perennial trees. The ability to quickly climb vertical surfaces is very important for these reptiles, since they choose hollows in the trunks of old trees for their habitat.
A source: https://www.zoopicture.ru/gekko-smithii/