Groups of Placental Mammals
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What is the largest group of mammals?
rodents
insect-eating mammals
• burrows • eats insects • pygmy shrew, mole • pests • order insectivora
flying mammals
• order chrioptera • true flying (bat) • sonar hearing • fruit-eating bats • insect-eating bats
flesh-eating mammal
• order carnivore • live in water and on land • canine teeth
toothless mammals
• no teeth or small teeth • long, sticky tongues • armadillo • order xenarthra
hooved mammals (ungulate)
• even-numbered toes on hove (order artiodactyla) - odd-numbered toes on hove (order perissodactyla)
gnawing mammals
• most abundant • rodents • order rodentia • pests • disease carriers • 4 incisors (large front teeth)
rodent like mammals
• gnawing teeth • nocturnal • hares have longer ear and legs (then a rabbit) • burrow • order lagoporpha
water dwelling mammals
• ocean • lungs • blue whales (largest mammal) • order cetaceans
primates
• most developed • highly intelligent • opposable thumbs • make tools • have eyes that face forward