Mammals

Author: Xi Shang Studio
Publisher:
Publish Date: 2006-03-01
Features: There are about 4,000 species of mammals in the world, and humans are one of them. Except for six primitive mammals, all mammals are directly born by their mothers. Although mammals vary in appearance and diet, they all share the same life, growth, development, and survival. The world of mammals is a colorful one, and they can be found almost everywhere—on the African plains, in the depths of the ocean, on polar ice caps, and in lush forests. Mammals are divided into three major categories: carnivorous (whales, dolphins, dogs, tigers, lions, and other carnivores), herbivorous (deer, beavers, cows, horses, pandas, tree shrews, and other herbivores), and omnivorous (humans, some bears, and other omnivores). The relationship between mammals and humans is also extremely diverse: there are those humans strongly dislike, such as mice; there are various pets and domestic animals that are extremely close to humans; and there are many rare species that have been driven out of their habitats and are already extinct or endangered due to human encroachment and overhunting. As human society continues to develop, the living space for animals is shrinking, and the number of animal species is decreasing.