KnowraFish gillLinked fromLinked fromThe 18 pages that link to Fish gill, each with the reason it gives.All 18Broader topic 3Related 11Narrower topic 2Compared with 2Amphibian skinCompared with: Gills perform aquatic gas exchange through specialized structures rather than the whole body surface.External gillsCompared with: Most fish gills exchange gases internally rather than projecting freely into the water.