Mammals Donald Winslow Zoology 12 April 2010. Characteristics of mammals Synapsid skull, hair, keratin, follicles Glands: sweat, scent, sebaceous, and.

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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