By Tyler Evans
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Leeches move in two different ways. When on land or attached to an object, the leech will detach the suckers that are the farthest away from the direction it wants to go and swings its body forward while still attached on the other end. Most people associate this movement when a leech is sucking blood from your body. When in a aquatic environment, the leech will flatten its body and wiggle back and forth to pick up speed in the water. This is mainly how leeches move around.
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The earthworm move similar to a leech. Earthworms have bristles on their bottoms that allow them to grip various surfaces and push themselves along. They are able to use their muscles to continually move around, which is why you see them squirm when you hold them in the air. They can move either forwards or backwards.
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Sea Mice also contain bristles that they use to slowly move around on the bottom of the ocean. The bristles it contains are weak so when storms or big waves come they get pulled around and often end up on the shore.