Brachiation
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Brachiation, 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 ea
Brachiating primates such as this siamang (Symphalangus syndactylus) have long forelimbs and curved fingers
Although humans primarily move through bipedal locomotion, they retain several adaptations that allow them to use brachiation, as demonstrated here with a group of U.S. Marines using monkey bars.
Siamang
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The siamang is an endangered arboreal, black-furred gibbon native to the tropical rainforests of Indonesia, Malaysia, and Thailand. The largest of the gibbons, the siamang can be twice the size of oth
Brachiation
…brachiation, the body is alternately supported under each forelimb. This form of locomotion is the primary means of locomotion for the small gibbons and siamangs of southeast Asia. Gibbons in particular use brachiation for as much as 80% of their locomotor activities. Some New World monkeys, such as spider monkeys…
Siamang Tierpark Hellabrunn 4
A close-up of adult male's head
A siamang group at rest in Sumatra, Indonesia - siamangs rest up to 50% of their waking hours.
Siamang calling with throat sac inflated