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Mammals

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Endothermy. 4 chambered heart. Diaphragm (muscle to aid breathing) Most nourished by a placenta ... Most groups live in Australia - mainly because Australia ... – PowerPoint PPT presentation

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Title: Mammals


1
Mammals
  • Pasterik 2006

2
Classification
  • Kingdom Animalia----Phylum Chordata------Subphyl
    um Vertebrata---------Class Mammalia

3
About 16 Orders in three groupsEgg-Laying
Mammals, Pouched Mammals, Placental mammals
4
Characteristics
  • Hair
  • Endothermy
  • 4 chambered heart
  • Diaphragm (muscle to aid breathing)
  • Most nourished by a placenta
  • Mammary glands produce milk

5
Gestation - length of time within the uterus. (9
months for humans)Weaning - time at which young
stop drinking milk.
6
Marsupials - Order Marsupiala
  • Most groups live in Australia - mainly because
    Australia split from the main continent and
    became isolated, the species there are almost all
    marsupials, though humans have "imported" other
    groups now.
  • Opossum - the only marsupial that exists
    naturally outside of Australia.

7
Kangaroo
Wombat
Phalanger
Koala
8
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