What is an Amphibian?
Amphibians come in all kinds of shapes and sizes.
Examples of amphibians include,
Frogs
Toads
Salamanders
Newts
Caecilians
Let’s take a look at some common characteristics.
First they are all vertebrates. All amphibians have a vertebrae column that protects the spinal chord.
The name amphibians means two lives. They are born in water and then metamorphose into adults that can live on land. Adult amphibians have to live near water since they need a steady moisture supply in order to survive.
They lay soft jelly like eggs and fertilization and development of offspring take place outside the body of the female frog. Most of these eggs are laid in water but all of the eggs must be kept moist.
Amphibians have two circulatory routes: one for oxygenation of the blood through the lungs and skin, and the other to take oxygen to the rest of the body
Amphibians are cold-blooded or ectothermic. They do not have the ability to regulate their own body temperatures.
Most amphibians have lungs and most can also breathe through their skin
Amphibians are mainly carnivores and feed on almost anything that moves and they can swallow. Some of these foods include spiders, earthworms, beetles, and caterpillars.
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