Salamanders

Definition

Salamanders are a group of amphibians characterized by their lizard-like appearance, including slender bodies, blunt snouts, and tails. They are known for their ability to regenerate lost limbs and other body parts.

5 Must Know Facts For Your Next Test

1. Salamanders undergo metamorphosis from larval to adult stages, although some species remain in their larval form throughout life.
2. They have moist skin that requires a damp environment to prevent desiccation and facilitate cutaneous respiration.
3. Many salamander species exhibit neoteny, retaining juvenile features even in adulthood.
4. Salamanders are found primarily in the Northern Hemisphere, particularly in North America.
5. They play a crucial role in ecosystems as both predators and prey, helping control insect populations and serving as indicators of environmental health.

Review Questions

Related terms

Amphibian: Vertebrates that live both on land and in water, undergoing metamorphosis from larval to adult stages.

Metamorphosis:

The biological process by which an animal physically develops after birth or hatching, involving a conspicuous change in form.

Neoteny: The retention of juvenile features in the adult stage of an organism.