There are about three million species of animals in earth. Animals have existed for millions of years and there are many types of animals in the earth that each has their own distinguished characteristics. Animals are divided into 6 groups. These are amphibians, birds, fish, invertebrates, mammals and reptiles. Animals include cat, dog, dolphins, giraffes, elephant, sharks, horses, fishes, wolves and etc.
Saturday, April 6, 2013