Many amphibians—like this Ceratophrys cranwelli—exhibit biofluorescence. Amphibians are ectothermic, anamniotic, four-limbed vertebrate animals that constitute the class Amphi

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.

Dec 10, 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 …

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...

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 …

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 …

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 …

What is an amphibian - Learn about their characteristics, what habitat they live in, examples and list of amphibians with names and pictures

"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 …