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Mammals include animals which are the highest life forms on earth. Mammals are vertebrates that are warm-blooded. They feed their young with milk from mammary glands in the mother's body. Mammals are the only animals on earth with hair, and they have a larger, higher-developed brain than other animals.

Mammals have skeletons that protect internal organs. Mammals have a circulatory system, a nervous system, a digestive system, a respiratory system, an endocrine system, a reproductive system, and an excretory system.

Mammals depend on their 5 senses for survival. These senses include: smell, taste, hearing, sight, and touch.

Mammals include animals that are herbivorous, carnivorous, or omnivorous.

Humans are mammals. Humans are the highest form of life on earth.