as adults, they are sessile (non-motile) suspension feeders. Frequently, adults are found attached to moving objects such as whales and ships, and are thereby transported (passive locomotion) around the oceans. Function Animals locomote for a variety of reasons, such as to find food, a mate, a suitable microhabitat, or to escape predators. Food procurement Animals use locomotion in a wide variety of ways to procure food. Terrestrial methods include ambush predation, social predation and grazing. Aquatic methods include filterfeeding, grazing, ram feeding, suction feeding, protrusion and pivot feeding. Other methods include parasitism and parasitoidism. Quantifying body and limb movement The study of animal locomotion is a branch of biology that investigates and quantifies how animals move. It is an application of kinematics, used to understand how the movements of animal limbs relate to the motion of the whole animal, for instance when walking or flying. Galleries See also Animal migration Animal navigation Bird feet and legs Feather Joint Kinesis (biology) Microswimmer Movement of Animals (book) Role of skin in locomotion Sessile Taxis References Further reading McNeill Alexander, Robert. (2003) Principles of Animal Locomotion. Princeton University Press, Princeton, N.J. External links Beetle Orientation Unified Physics Theory Explains Animals' Running, Flying And Swimming Ethology Zoology Articles containing video clips