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Amphibians are small vertebrates that need water, or a moist environment, to survive. The species in this group include 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, excluding the amniotes (tetrapods with an amniotic membrane, such as modern reptiles, birds, and mammals ).
18 de mar. de 2024 · Amphibian, any of roughly 8,100 vertebrate species known by their ability to exploit both aquatic and terrestrial habitats. The name amphibian, derived from the Greek word meaning ‘living a double life,’ reflects this dual life strategy, but some species are permanent land dwellers, and others are completely aquatic.
Los anfibios ( Amphibia, del griego ἀμφί, amphí ('ambos') y βίος, bíos ('vida'), que significa «ambas vidas» o «en ambos medios») son una clase de animales vertebrados anamniotas (sin amnios, al igual que los peces ), tetrápodos, ectotérmicos, con respiración branquial durante la fase larvaria y pulmonar al alcanzar el estado ...
Amphibians are cold-blooded vertebrates (vertebrates have backbones) that don’t have scales. They live part of their lives in water and part on land.
Amphibians are the most threatened class of animals in nature. They are extremely susceptible to environmental threats because of their porous eggs and semipermeable skin. Every major threat, from climate change to pollution to disease, affects amphibians and has put them at serious risk.
Although the structure of the muscular, skeletal, and other anatomical systems are specifically modified for each group, amphibians are often set apart from other groups of animals by their characteristic skin, or integument, and evolutionary advances in vision and hearing.
