Photo de stock - Annelida - Oligochaeta - Lumbricidae - Earthworm (Lumbricus terrestris). Locomotion. Metamere segmented body. Four pairs of normally posterior oriented setae on each segment. Sequential extension and contraction cause retracted and protruded setae that contact burrow walls enabling forward movement. Earthworm controls setae to reverse movement

Photo de stock: Annelida - Oligochaeta - Lumbricidae - Earthworm (Lumbricus terrestris). Locomotion. Metamere segmented body. Four pairs of normally posterior oriented setae on.

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