Add to the amphibian list and share. Amphibians are cold-blooded vertebrates that are born in the water and breathe on the gills. When the larva becomes an adult, the animal's lungs develop the ability to breathe air, allowing the animal to live on land. Frogs, toads and salamanders are all amphibians.
What is the meaning of amphibians in biology?
Noun. Amphibian cold-blooded vertebrates, including frogs and toads, newts and salamanders, and Caecilians. Larvae are usually aquatic and breathe on the gills, and adults are usually semi-terrestrial and breathe through the skin of the lungs and moist glands.
How many amphibians are there?
There are more than 6,000 species of amphibians around the world, of which about 300 have been found in the United States.
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