Mammals Mr. Skirbst Mammals Mammals 5 Characteristics of mammals: Mammals 5 Characteristics of mammals: 1. vertebrate Mammals 5 Characteristics of mammals: 1. vertebrate 2. warm-blooded Mammals 5 Characteristics of mammals: 1. vertebrate 2. warm-blooded 3. have hair or fur Mammals 5 Characteristics of mammals: 1. vertebrate 2. warm-blooded 3. have hair or fur 4. bears live young Mammals 5 Characteristics of mammals: 1. vertebrate 2. warm-blooded 3. have hair or fur 4. bears live young 5. produces milk for offspring 3 Groups of Mammals 3 Groups of Mammals 1. Monotremes - primitive, egg-laying ex. duckbill platypus, echidna 3 Groups of Mammals 2. Marsupial - under-developed young - develop in pouch after birth ex. kangaroo, koala, opossum, wombat, bandicoot, gliders 3 Groups of Mammals 3. Placental - young develop in placenta 3 Groups of Mammals 3. Placental - young develop in placenta - born when body is developed 3 Groups of Mammals 3. Placental - young develop in placenta - born when body is developed - gestation period = time period developing in mother’s placenta 10 Groups of Placental Mammals 1. Insect-eating star-nosed mole, hedgehog, shrew 10 Groups of Placental Mammals 1. Insect-eating 2. Flying bat, flying squirrel 10 Groups of Placental Mammals 1. Insect-eating 2. Flying 3. Flesh-eating walrus, weasel, cat, dog 1. 2. 3. 4. 10 Groups of Placental Mammals Insect-eating Flying Flesh-eating Toothless sloth, armadillo, anteater 1. 2. 3. 4. 5. 10 Groups of Placental Mammals Insect-eating Flying Flesh-eating Toothless Trunked Elephant, tapir 10 Groups of Placental Mammals 6. Hoofed pig, horse, camel, rhino, giraffe 10 Groups of Placental Mammals 6. Hooved 7. Gnawing mouse, rat, chipmunk, squirrel 10 Groups of Placental Mammals 6. Hooved 7. Gnawing 8. Rodent-like Rabbit, hare, pika, beaver 6. 7. 8. 9. 10 Groups of Placental Mammals Hooved Gnawing Rodent-like Water-dwelling dolphin, porpoise, whale 10 Groups of Placental Mammals 6. Hooved 7. Gnawing 8. Rodent-like 9. Water-dwelling 10. Primates chimp, gorilla, monkey, human Hair vs. Fur Hair vs. Fur Human Hair differences Echo-location Teaching yourself echolocation
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