Herbivores eat plants, carnivores eat meat and omnivores eat both. A mammal has a highly developed brain, nerves and sensory organs such as eyes, nose, mouth, ears and touch. Circulation A mammal has a four chambered heart, blood vessels and blood within their system. A mammal has lungs and breathes in oxygen and gives off carbon dioxide. Reproduction A mammal reproduces sexually with the female being fertilized by the male internally.
Mammals have live birth and care for their young for quite a time after birth.
Excretion A mammal gas kidneys and is covered with skin. The skin has hair. Mammals are warm blooded. A mammal has bilateral symmetry. A mammal can be various shades of brown, black, tan, white.