How did crabs breathe?
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Asked in Animal Life, Hermit Crabs
How do sea hermit crabs breathe?
Asked in Crabs
What kind of organ does a crab use to breathe under water?
Do crabs breathe through their skins?
Crabs have gills. The underwater ones have larger gills than the terrestrial ones. Terrestrial crabs use the humidity in the air to breathe. this is why crabs live near water even if they are land dwellers. some crabs have very small and basic lungs but these cannot function without water and are usually attached to some sort of gill.