Aquatic locomotion

Aquatic locomotion is biologically propelled motion through a liquid medium. The simplest propulsive systems are composed of cilia and flagella. Swimming has evolved a number of times in a range of organisms including arthropods, fish and molluscs. ==Micro-organisms{anchor|Micro-organisms}== === Bacterial === ===Ciliates=== Ciliates use small flag...
Found on http://en.wikipedia.org/wiki/Aquatic_locomotion

aquatic locomotion

in animals, movement through water either by swimming or by progression in contact with the substrate (i.e., the bottom or other surfaces).[3 related articles]
Found on http://www.britannica.com/eb/a-z/a/91
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