Curiosities: How do squid move through the water?

By Eddy Montilla

A squid is a sea creature that has a soft body, eight arms and two long feeding tentacles. There are around 300 different types of squid and probably many more to be discovered in the future. They can move through the water thanks to a jet-propelled system.

Squid take in water through a part of their body called mantel cavity. The contraction of the mantel expels the water through a movable organ called funnel, which is located beneath their eyes. By controlling the amount of water expelled from the funnel and bending it towards one side of the body or the other, squid can move (very quickly if necessary) and change their speed and direction.

Copyright 2013 All rights reserved

Photo: By courtesy of Colin under the criteria of Creative Commons (Flickr).


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