Amphibians are ectothermic, anamniotic, four-limbed vertebrate animals that constitute the class Amphibia. In its broadest sense, it is a paraphyletic group encompassing all tetrapods, but excluding …

Dec 19, 2025 · amphibian, (class Amphibia), any member of the group of vertebrate animals characterized by their ability to exploit both aquatic and terrestrial habitats.

Mar 13, 2024 · Amphibians are ectothermic (cold-blooded) vertebrates that belong to the Class Amphibia. A defining characteristics is their ability to live both in aquatic and terrestrial environments.

All amphibians spend part of their lives in water and part on land, which is how they earned their name—“amphibian” comes from a Greek word meaning “double life.” These animals are born with …

Amphibians are small vertebrates that need water, or a moist environment, to survive. The species in this group include frogs, toads, salamanders, and newts. All can breathe and absorb water...

Dec 10, 2025 · Amphibians are a group of cold-blooded tetrapods (four-limbed vertebrates), except those with an amniotic membrane (the amniotes). They are a paraphyletic group belonging to the …

Apr 23, 2025 · Amphibians are tetrapod vertebrates belonging to the class Amphibia, characterized by their unique dual-life adaptation to both aquatic and terrestrial environments. With approximately …

This definition refers to the fact that most amphibians live their lives in two different stages in two different environments…water and land, first as tadpoles and then as terrestrial adult frogs. This is …

Jun 4, 2025 · Amphibians are a fascinating group of cold-blooded vertebrates that live dual lives — part on land and part in water. This unique class of animals includes frogs, toads, salamanders, and newts.

"Amphibian" comes from the Greek "amphi-" and "bios" meaning "of both or double kinds" and "life" or "living", referring to the generalized life history trait of amphibians undergoing metamorphosis from …