axial locomotion
Quick Summary
Axial locomotion is a form of movement where the entire body shape is modified to generate propulsion. This contrasts with appendicular locomotion, which utilizes specialized body appendages. Examples of axial locomotion include the hydraulic ramjet method seen in squid, the body wave motion of eels, and the contract-anchor-extend method used by leeches. In microorganisms like amoebas, pseudopodial locomotion can be considered axial, involving the extension of a body part that anchors and pulls the rest of the organism forward. This type of movement relies on the interaction of the whole body with its environment.12
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