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Mammals Donald Winslow Zoology 12 April 2010
Characteristics of mammals Synapsid skull, hair, keratin, follicles Glands: sweat, scent, sebaceous, and mammary Teeth diphyodont & usually heterodont Vibrissae, secondary palate, eyelids & external ears 4 limbs, many types of locomotion 4-chambered heart; nonucleated red blood cells Muscular diaphragm, often horns or antlers
Mammalian teeth Incisors Canines Premolars Molars
Mammalian red blood corpuscles Non-nucleated Biconcave Erythrocytes
Mammalian horns True horns Antlers Rhino horns
Mammalian feeding strategies Insectivores Herbivores Browsers, grazers, gnawers, cellulose, ruminants Carnivores Piscovores Omnivores
Migration Caribou Arctic National Wildlife Refuge
Introduction to Mammals Endotherms Hair or Fur Feed Young with Milk.
Integument Skin = composite organ
Characteristics of Mammals
KINGDOM ANIMALIA Phylum Chordata Subphylum Vertebrata Class Mammalia
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MAMMAL SKULLS. GENERAL CLASSIFICATION CARNIVORE Obtains energy from flesh of other animals.
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