No but gills tend to be only in aquatic species. Amphibians, such as frogs, have gills when they are tadpoles but eventually form lungs when they get older. Stingrays also have gills.
Salamanders are on of those amphibians that has gills as well. They can get to up to 9 inches long, and mostly come out during the night. Some species of these little guys are actually able to breath through their skin.
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