Salamanders are amphibians, not lizards, and they do not all share the same body plan or life cycle. Depending on the species, they may breathe with lungs, gills, or moist skin and mouth tissues; some live mostly on land, while others remain aquatic. Here are evidence-based facts that show why salamanders matter and how varied they are.
Salamanders are amphibians, not lizards
Salamanders belong to the amphibian group Caudata. They generally have elongated bodies and tails, and most have four limbs, though some aquatic forms have reduced limbs. Lizards are reptiles, so a salamander’s resemblance to a small lizard does not make it one.
Salamanders use different ways to breathe
Breathing systems vary by species and life stage. Some salamanders use lungs, some aquatic larvae use gills, and some species lack both lungs and gills and exchange gases through their skin and the lining of the mouth. Lungless salamanders need moist surroundings because skin-based gas exchange depends on moisture.
The Channel Islands slender salamander is one example of a lungless species. The Jemez Mountains salamander is another terrestrial, lungless example. These species-specific cases should not be taken to mean that all salamanders breathe the same way.
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Salamander life cycles can be very different
Many salamanders begin as aquatic, gilled larvae, but not every species follows that pattern. Some lay eggs on land, where young hatch as small salamanders rather than as free-living aquatic larvae. The clouded salamander is one example of a species associated with terrestrial egg clutches.
Some salamanders retain larval traits into adulthood. Northwestern salamanders may keep gills and other larval features as adults and reproduce in water. This condition is called paedomorphosis.
One salamander species may drop its tail to escape
The Channel Islands slender salamander may drop its tail when disturbed. The detached tail can distract a predator while the salamander escapes. This is a species-specific defense; it should not be generalized to every salamander.
Salamanders are part of food webs
Salamanders eat small prey, including insects and other invertebrates, and can also be prey for larger animals. These roles connect them to other parts of forest and aquatic food webs. David Miller, a wildlife ecology professor and study co-author, said, “Salamanders serve a vital function in forest ecosystems,” according to a USGS news release about salamanders in northeastern forests.
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Salamander skin is permeable, making these animals sensitive to drying and toxic substances in their surroundings. Their dependence on moist habitats and, for some species, clean aquatic environments means environmental changes can affect them.
Bsal is a conservation concern
Batrachochytrium salamandrivorans, commonly called Bsal, is a fungus that causes serious disease in salamanders. The U.S. Geological Survey reports that it was identified in 2013 as the cause of mass wild salamander die-offs in the Netherlands and Belgium. The USGS National Wildlife Health Center’s January 23, 2026 overview lists outbreaks in Belgium, Germany, the Netherlands, and Spain. These reports describe those locations and dates; they should not be read as a broader claim about current disease status elsewhere.
A 2016 USGS article reported that more than 750,000 salamanders were legally imported into the United States from 2010 through 2014. That is a historical figure for that period, not a current annual import rate. The same USGS article stated that one-third of the planet’s amphibian species were threatened with extinction; this is the figure and publication context reported in 2016.
How to observe salamanders responsibly
- Use a regional field guide or a reliable local wildlife source to identify species; appearance and life stage vary.
- Observe salamanders where you find them rather than collecting or moving them.
- Avoid disturbing eggs, shelters, and habitat.
- Follow local wildlife guidance for reducing the spread of pathogens between sites.
FAQ
Do salamanders breathe through their skin?
Some do, but it is not true of every salamander. Species vary: some use lungs, some larvae use gills, and some exchange gases through skin and mouth tissues.
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Can salamanders drop their tails?
The Channel Islands slender salamander may drop its tail when disturbed, using it to distract a predator. This behavior is documented for that species and should not be assumed for all salamanders.
Do salamanders live in water?
Some salamanders live in water or begin life as aquatic larvae, while others are terrestrial. Northwestern salamanders may retain larval traits, including gills, as adults and reproduce in water.
Are salamanders lizards?
No. Salamanders are amphibians in Caudata; lizards are reptiles.
Why are salamanders important?
Salamanders eat small invertebrates and serve as prey for larger animals, making them part of forest and aquatic food webs. Their sensitivity to moisture and toxic substances also makes habitat conditions important to their survival.
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