To eat, it deftly shucks nuts with its two tails. It rarely uses its arms now.
(From Bulbapedia) Ambipom is a purple, simian Pokémon with two tails, each with a large, rounded hand with three red-tipped fingers. The tails also have a cuff of a rounded frill on the wrists. The bases of Ambipom's tails also have a similar frill. It has round ears with red insides. Ambipom has an arrangement of a split hair sticking out from the top of its head. These strands of hair are longer on a female. It has a purple, triangular nose and wide eyes.
Ambipom can leap from tree to tree with brilliant speed. To eat, it deftly shucks nuts with its two tails. As it has two hands on its tails, it rarely uses its arms. Ambipom works in large colonies in heavily wooded areas and makes rings by linking tails with another Ambipom, apparently in friendship. It also shows affection by using both of its tails to wrap and squeeze people. It lives along with its young, Aipom. While searching for comfortable trees, Ambipom get into territorial disputes with Passimian, in which they win half the time.
(From Bulbapedia) Ambipom appears to have been based on a monkey, with an exaggerated concept of a prehensile tail. It may be specifically based on the squirrel monkey, which is similar in appearance, and also shares its large smile with cymbal monkeys. It is also similar to an ahuizotl, a creature of Aztec mythology with monkey hands and a fifth human hand on its tail.
(From Bulbapedia) Ambipom is a combination of the prefix ambi- (from the Latin for both), referring to ambidexterity, and a corruption of palm.