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 …

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...

2024年3月14日 · Amphibians are a fascinating group of animals that are characterized by their soft, almost slimy, moist skin and their complex life cycle. While they are harmless when left alone, many species are actually toxic or poisonous.

2025年1月16日 · amphibian, (class Amphibia), any member of the group of vertebrate animals characterized by their ability to exploit both aquatic and terrestrial habitats.

2024年3月13日 · Amphibians are a fascinating and diverse group of animals that play a crucial role in many ecosystems. These creatures live both in water and on land. Let’s explore their characteristics, life cycle, evolutionary history, and classification.

2022年10月28日 · Amphibians are cold-blooded vertebrates that start their life in water before sprouting legs and walking on land. They have no scales, and they are carnivores. During reproduction, they release eggs that are fertilized outside of the body.

2021年9月1日 · Amphibians are vertebrate animals in the class Amphibia. After hatching from their eggs, most amphibians go through an aquatic larval stage, before metamorphosizing into their adult, air-breathing forms.

2018年5月25日 · Amphibians are animals that have adapted to living both in the water and on land. They appeared around 370 million years ago, during the Devonian Period. Amphibians were the first vertebrates (animals with backbones) to be able to live out of water. Amphibians lead amazing ‘double lives’.

2024年9月20日 · Amphibians are a class of vertebrates that include frogs, toads, salamanders, and newts. They are unique for their ability to live both in water and on land. Amphibians typically undergo metamorphosis from an aquatic larval stage to a terrestrial adult stage.

2024年10月3日 · Amphibians are a class of animals belonging to the phylum Chordata in the kingdom Animalia. Common examples include frogs, toads, and salamanders. They are vertebrates, meaning they possess a backbone, and are cold-blooded, which allows them to adapt to their surrounding temperatures.