Why Do Monkeys Swing from Tree to Tree?

Monkeys swing on trees because they, like us humans, have evolved shoulders capable of reaching above their heads and moving back and forth.

How do monkeys swing from tree to tree?

Brachiation (from "brachium", Latin for "arm"), or arm swinging, is a form of arboreal locomotion in which primates swing from tree limb to tree limb using only their arms. During brachiation, the body is alternately supported under each forelimb.

Why can monkeys swing so fast?

Monkeys: Much like humans, monkeys have extremely flexible shoulder joints that allow the arm to rotate in a full circle, giving their arms great range of motion. These flexible shoulder joints allow for monkeys to swing and climb, hand over hand, very quickly as a way of transportation.