The males' spermatophores only stimulate egg development; their genetic material does not contribute to the offspring's DNA.

[citation needed] Silvery salamanders live almost anywhere between south-central Michigan to adjacent Indiana and Ohio, western Massachusetts and southern to northern New Jersey.

Theory states that the population may have dropped due to the vernal pool in which they live not retaining water for a long enough period for their tadpoles to reach metamorphosis.

[6] The LJJ biotype's predators include birds, fish, raccoons and dogs.

[citation needed] Their diet mainly consists of slugs, ants, spiders, soft insects and worms.