They move and climb through the forest by hand over hand (brachiation) motion. Chimpanzees are far better at brachiation than humans. The arms are used to swing from tree to tree, which is known as brachiation. Arboreal locomotion consists of vertical climbing and brachiation. They have a fairly dorsally placed scapula to allow for increased mobility involved in brachiation. Cylindrical force plates have also been constructed for studying arboreal locomotion, including brachiation. In lesser apes, these characteristics were adaptations for brachiation. Their curved hands with long metacarpal bones allows for easy brachiation. Different types of suspensory behaviour include brachiation, climbing, and bridging. Continuous contact brachiation has often been compared to the movement of a simple pendulum. During brachiation, the body is alternately supported under each forelimb. It is thought this feature may help in brachiation when moving through the canopy. Their mode of transportation is called brachiation, where they swing from branches to get around. Brachiation originated in Africa, thirteen million years ago. Due to its aerial phase, ricochetal brachiation is similar to bipedal running in humans.