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Class Mammalia. Those hairy buggers! “The Mammals”. General Characteristics. Endothermic Most have sweat glands Body covered with hair Nourishes young with milk Mammary glands. Characteristics Continued. Four chambered heart To be discussed later Specialized teeth
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Class Mammalia Those hairy buggers! “The Mammals”
General Characteristics • Endothermic • Most have sweat glands • Body covered with hair • Nourishes young with milk • Mammary glands
Characteristics Continued • Four chambered heart • To be discussed later • Specialized teeth • Highest developed brains
Body Systems • Circulatory & Respiratory System • Four-chambered heart • Double loop system for blood • Breathe with lungs • Diaphragm helps move air
Mammal Teeth • Type, number, and arrangement indicate animal’s diet • Canines- sharp and pointed • Incisors- in front for biting • Molars- flattened for grinding
Tomorrow The three orders of mammals and their characteristics
Picture Credits • Circulatory System [http://www.teachnet.ie/farmnet/images/Circul2.gif] • Tooth Types [http://biology.dbs.umt.edu/dbs/mammal.htg/mammal.htg/Teeth.jpg]