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Gill



An Alpine Newt larva, showing the gills which flare just behind the head.
An Alpine Newt larva, showing the gills
which flare just behind the head.
Photographer: André Karwath


A Gill is an organ used for extracting oxygen from water. They are found in various groups of aquatic animals including mollusks, crustaceans, insects, fish and amphibians.


Unlike lungs, gills appear on the outside of the body and they are usually positioned on or near the head. In the case of aquatic insects, they are at the end of the abdomen.


Associated Terms: Gills

 


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