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Mammals

Mammals. Pages 486-494 in book. Description. Hair/fur for warmth. Give birth to live young. Feed their young milk. Endothermic: regulate body temp with hair, fat, sweating, shivering, and goosebumps. Adaptations for eating. Carnivore, omnivore, herbivore Claws

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Mammals

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  1. Mammals Pages 486-494 in book.

  2. Description • Hair/fur for warmth. • Give birth to live young. • Feed their young milk. • Endothermic: regulate body temp with hair, fat, sweating, shivering, and goosebumps.

  3. Adaptations for eating • Carnivore, omnivore, herbivore • Claws • Behavioral adaptations: hunting • Three types of teeth: • 1. incisors: cut food • 2. canines: stab and tear food • 3. molars: grind food into tiny bits

  4. Reproduction • Internal fertilization • Young are born alive • Have few babies, but provide a lot of care to raise them to adults Video: lifecycle Video: live young

  5. Movement • Most have legs for walking, running, or hopping. • Aquatic mammals have fins/flippers for swimming.

  6. Adaptations for survival • Teeth, claws, and or horns to fight • Hide/camouflage run away • Intelligence

  7. Other • Mammals include monotremes (egg laying), marsupials (have pouches), placental (have placenta for young). • Believed to have evolved from reptiles around 220 mya.

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