Prevost's squirrels (Callosciurus prevostii) are agile arboreal mammals, which excel at climbing and jumping. Their toes, with their sharp claws, are well adapted for clinging to tree trunks. They can jump across considerable gaps between trees. Tails help these animals balance while running and climbing, and can act as a rudder when they jump. On the ground, tree squirrels move in a sequence of graceful leaps, often pausing to raise their heads and look around.