Page 94 - Science
P. 94

• Their skin is permeable (which means air can pass


         through the skin) and many amphibians therefore


         breathe through their skin instead of through


         their lungs.




     • All amphibians begin their life in water with gills


         and tails.



     • There are more than 4,000 different kinds of


         amphibians.



     • There are three types of amphibians:  frogs,



         salamanders       and caecilians.



     • The complete change of form from a fish-like


         animal to a frog is called metamorphosis.



     • There is a group of amphibians called caecilians


         which do not have legs.
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