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. …

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 30, 2025 · The term ‘amphibian’ is derived from the Greek word ‘amphíbios,’ meaning ‘both kinds of life,’ referring to their ability to inhabit terrestrial and aquatic environments. About 8,000 species of …

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 …

1 day ago · Discover 35 types of amphibians with detailed reviews, identification, and fascinating facts about frogs, salamanders, and more.

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 …

Amphibians (class Amphibia) are cold-blooded tetrapods (four-legged vertebrates) whose eggs lack a tough protective membrane around the embryo. The term "amphibian" comes from the Greek amphi …

Feb 28, 2025 · More than 6,000 amphibian species exist worldwide, with approximately 300 of them found in the United States. In response to indications of declines of amphibian populations …