interesting animal facts

Amphibians are a fascinating species that spend one part of their lives in water and the other part on dry land. The many interesting facts about the three types of amphibians -- frogs, salamanders and Caecilians -- are largely unknown to the general public. Take a look at some interesting animal facts about amphibians. You may learn some surprising things about these slippery creatures
Long Live Amphibians
Amphibians have been around for about 350 million years. They were the first vertebrates to live on land. The earliest known frog appeared on earth about 190 million years ago during the end of the Jurassic period.

Today, there are about 5,400 species of amphibians. There are about 2,000 species of toads and frogs.