Gecko lizards possess specialized adhesive pads on their feet that enable them to cling to various surfaces. These remarkable pads are composed of numerous hair-like structures called setae, which feature even smaller branches known as spatulae at their tips. When a gecko presses its foot onto a surface, the spatulae on its setae create attractive forces, specifically van der Waals forces, between the surface and the gecko's foot. As a result, the gecko can adhere to the surface without the need for sticky substances or suction cups. Moreover, geckos have the ability to swiftly adjust the angle and position of their feet, allowing them to maintain their grip while in motion.