Do all salamander species breathe through their skin?



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    No.  Different species of salamanders breathe in different ways, and in some species, the method of respiration changes between the larval and adult stages.  Many salamanders are born in water and stay in the water throughout their larval stage, so they breathe through gills.  Salamanders that live in the water throughout their lives will continue to have gills as adults, but those that live on land will either develop lungs or breathe through their skin (known as valerian respiration).  The family Plethodontidae are commonly known as lungless salamanders, and they are only capable of valerian repsirations.  Some land-dwelling salamanders have lungs and breathe through their skin.

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