mammals donald winslow zoology 12 april 2010. characteristics of mammals synapsid skull, hair,...
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Mammals
Donald WinslowZoology
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
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