Class mammalia
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Class Mammalia. General Characteristics. Bilaterally symmetrical __________ Mammary glands (produces milk) Nurse young Endothermic (warm blooded) ____________________ Dioecious Internal fertilization. Heterodont dentition Specialized teeth ______________________

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Class Mammalia

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Class mammalia

Class Mammalia


General characteristics

General Characteristics

  • Bilaterally symmetrical

  • __________

  • Mammary glands (produces milk)

    • Nurse young

  • Endothermic (warm blooded)

  • ____________________

  • Dioecious

    • Internal fertilization


Class mammalia

  • Heterodont dentition

    • Specialized teeth

  • ______________________

  • Produce a placenta (usually)


Class mammalia

________________________

  • 6 Major Orders:

    1.) Order Rodentia

    2.) Order Artiodactyla

    3.) Order Carnivora

    4.) Order Cetacea

    5.) Order Primates

    6.) Order Monotremata


Order rodentia

Order Rodentia

  • Rodents!

    • Mice, squirrels, gophers, beavers, & guinea pigs

  • ________________

  • Have continuously growing incisors

    • ____________ = front teeth

    • Must chew to keep short


Class mammalia

  • Have a short breeding cycle

  • _____________________


Order artiodactyla

Order Artiodactyla

  • Pigs, hippos, camels, deer, sheep, etc.

  • 220 species

  • _______________


Class mammalia

  • Mostly herbivorous/grazing animals

    • _______________________

      • Are omnivorous


Order carnivora

Order Carnivora

  • ________________________!

  • Canines, cats, bears, raccoons, seals, otters, walruses, etc.

  • 260 species

  • Are predatory


Class mammalia

  • __________________________

  • Have special teeth and/or claws to take down prey


Order cetacea

Order Cetacea

  • Whales and dolphins

  • Have blubber for insulation

  • ______________________

  • All aquatic

  • Highly intelligent


Class mammalia

  • Use sonar to locate food


Order primates

Order Primates

  • Gorillas, chimps, orangutans, humans, monkeys, lemurs

  • _______________

  • Adaptations for tree-living

    • Strong limbs with opposable digits


Class mammalia

  • ___________________

  • Extensive parental care


Order monotremata

Order Monotremata

  • Duck Billed Platypus and Echidnas (spiny anteater)

  • Only mammals to lay eggs

  • Have a single opening called a cloaca for urination, defecation, and reproductive

  • Platypus has a poisonous barb on the back foot


Order monotremata1

Order Monotremata

Poison Barb

Echindas


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