How do frogs climb smooth surfaces?

Frogs climb smooth surfaces using adhesive pads on their toes. These pads are covered with a network of tiny, flexible structures that create friction and grip through surface tension. Frogs also secrete a thin layer of mucus that enhances adhesion by increasing contact with the surface. This adaptation is particularly useful for tree frogs, allowing them to climb leaves, glass, or other smooth surfaces. Their climbing ability helps them evade predators and reach feeding or breeding sites.