Mammals http://sciencewithme.com/learn-about-mammals/

Mammal Characteristics Covered with hair/fur made of keratin http://www.flickriver.com/photos/donkeyhotey/5713933608/

Mammal Characteristics Feed their young milk, which comes from mammary glands Maintain a body temperature different from their surroundings  endothermic

Mammal Characteristics 4. Able to cool their bodies by producing sweat 5. Able to keep bodies warm by having a layer of fat

Mammal Characteristics A muscular sheet called the diaphragm increases lung capacity Have a 4 - chambered heart that prevents blood mixing

Nutrition All mammals are heterotrophs They have specialized teeth that correspond with their diet

Nutrition Mammals that only eat plants are herbivores

Nutrition Mammals that eat only meat are carnivores

Nutrition Mammals that eat all types of food are omnivores

External fertilization Reproduction External fertilization All mammals reproduce by internal fertilization Mammals that lay eggs are monotremes platypus echidna

Reproduction Marsupial mammals have a pouch where the embryo completes its development

Reproduction Most mammals carry their young inside a placenta (protective layer of tissue inside the uterus)