dicamptodon: salamanders found near cold streams throughout the year
salamander: any of various typically terrestrial amphibians that resemble lizards and that return to water only to breed
single nucleotide polymorphism: (genetics) genetic variation in a DNA sequence that occurs when a single nucleotide in a genome is altered; SNPs are usually considered to be point mutations that have been evolutionarily successful enough to recur in a significant proportion of the population of a species