1. Mammals Donald Winslow Zoology 12 April 2010

2. 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

3. Mammalian teeth Incisors Canines Premolars Molars

4. Mammalian red blood corpuscles Non-nucleated Biconcave Erythrocytes

5. Mammalian horns True horns Antlers Rhino horns

6. Mammalian feeding strategies Insectivores Herbivores Browsers, grazers, gnawers, cellulose, ruminants Carnivores Piscovores Omnivores

7. Migration Caribou Arctic National Wildlife Refuge