amphibians are a type of animal they have no backbone and are most of the time slimy the first part of their lives are in water and last part on land. They also grow fins so they can easily swim under water when they are born. the word amphibian means two lives they change when they grow soon after mid age they get lungs and then legs. They also get gills when they are babies. One of the lives is in water and the second is on land.
like fish and reptiles amphibians are cold blooded. They must cool off and warm up using their surroundings. Most amphibians are layed by an egg when they hatch they are still on the larvae stage. Their undergo changes called metormorphisis not all the amphibians go through the metormorphisis.