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...
There are three groups of amphibians, defined by their orders: frogs and toads (Anura), salamanders and newts (Caudata), and burrowing legless and wormlike caecilians (Gymnophiona). There are actually 73 families and 7,292 species of amphibian in the world, but many are not as well known.
Amphibians are among the most fascinating vertebrate animals, living a “double life” both in water and on land. With over 8,000 known amphibian species, this diverse group includes frogs, toads, salamanders, and newts.
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 the amniotes (tetrapods with an amniotic membrane, such as modern reptiles, birds and mammals).
amphibian, (class Amphibia), any member of the group of vertebrate animals characterized by their ability to exploit both aquatic and terrestrial habitats.
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. The term “amphibian” is derived from the Greek words “amphi” (both) and “bios” (life), reflecting their dual lifestyle.
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 currently known, of which almost 90% are frogs.
Amphibians are vertebrates that require water to survive, are cold-blooded, and spend time both on land and in water. Though other animals only live on land or in the water, amphibians have the unique ability to thrive equally in both. Amphibians cover over 6,000 different species across the globe, but about 90% are frogs.