Why are some salamanders brightly colored or boldly patterned?

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Study an amphibious tiger salamander of the mole salamander family Ambystomatidae in its natural habitat — Caudata Tiger salamanders (*Ambystoma tigrinum*) are widespread across much of the United States. Although they are generally black with yellow blotches, bars, spots, or even stripes, some are lighter in colour or have olive markings. Tiger salamanders belong to the mole salamander family, Ambystomatidae.

Some salamanders are brightly colored or boldly patterned as a form of aposematism, a defensive strategy used to advertise their toxicity to potential predators.12

While many salamanders are drab in color, those that possess poisonous skin secretions or glands often display striking colors, spots, or streaks. By exhibiting these conspicuous markings, the salamander signals that it is distasteful or dangerous, which encourages predators to avoid attacking them and prevents the animal from risking injury during a potential encounter. This evolutionary adaptation is particularly common among the more toxic species within the family Salamandridae.1324