Brachiation

Definition

Brachiation is a form of arboreal locomotion where primates swing from tree limb to tree limb using their arms. This mode of movement is characteristic of some species of gibbons and other lesser apes.

5 Must Know Facts For Your Next Test

1. Gibbons are the most well-known brachiators among primates.
2. Brachiation requires highly flexible shoulder joints and elongated forelimbs.
3. This mode of locomotion allows primates to move quickly through the forest canopy while avoiding ground-based predators.
4. Brachiation is energy-efficient for long distances but requires significant upper body strength.
5. Some primates exhibit semi-brachiation, combining swinging with other forms of movement like climbing.

Review Questions

• What anatomical adaptations make brachiation possible in certain primates?
• Why is brachiation considered energy-efficient for traveling through forest canopies?
• Which group of primates is best known for their ability to brachiate?

Related terms

Arboreal Locomotion: Movement through trees, which includes various forms such as climbing, leaping, and swinging.

Gibbons: A group of lesser apes known for their exceptional brachiating abilities.

Semi-brachiation: A form of movement that combines swinging with other modes like climbing.