What function of the bumpy pads on a Tasmanian devil's paw?

Tasmanian devils have dozens of tiny bumps on the rather large pads of their feet which appear to act as gripping pads. The friction created by the pads gives them better contact with surfaces for running. It gives the animal better speed and agility when in pursuit of prey.

Younger, lighter Tasmanian devils use the pads to help them climb, but they are not arboreal (tree-dwelling) creatures. It is believed that, because young devils are sometimes prey of larger ones, climbing trees helps them to escape.