Mammalia:
Examples:
- Have hair during some point in their life
- Have a heart which is four chambered
- Warm-blooded
- Produce milk in their mammary glands
- Have four limbs
- Endothermic
- Most are vertebrates
- Most have teeth
- Most are viperous; some are oviparous
- 5,000 species
- All have 3 middle ear bones
- Can be very large or very small
- Terrestrial and aquatic organisms
- Sexually reproduce internally
- Life spans range anywhere from 70-200 years
- Carnivores, herbivores, or omnivores
Examples:
- Human (Homo sapiens)
- Bat (Chiroptera)
- Rodents (Rodentia)
- Primates
- Marsupialalia
- Cetacea
- Carnivora
- Ursidae
- Monotremata
- Delphinidae
- Macropods
- Cervidae
- Dasypodidae
- Squirrel (Sciuridae)
- Dasypodidae
- Rhinocerotidae
- Erinaceinae