Birds and Mammals Sixth Grade Gail Howard

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Birds and MammalsSixth GradeGail Howard

• Birds
• The Physics of Bird Flight
• What Is a Mammal?
• Diversity of Mammals

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Characteristics of Birds

• Endothermic vertebrate
• Feathers
• Four-chambered heart
• Lays eggs

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Four ways birds are adapted for flight

• Bones of a birds forelimbs form wings
• Bones are nearly hollow
• Large chest muscles that move the wings
• Feathers

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Characteristics of Mammals

• Endothermic vertebrate
• Four-chambered heart
• Skin covered with fur or hair
• Most young are born alive
• Fed with milk produced in its mothers body

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Three groups of mammals

• Monotremes
• Marsupials
• Placental mammals

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Monotremes

• There are two species of monotremes spiny
  anteaters and duck-billed platypus.
• They are mammals that lay eggs.

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Marsupials

• Marsupials are mammals whose young are born
  alive, but at an early stage of development, and
  they usually continue to develop in a pouch on
  their mothers body.
• Two species of marsupials are kangaroos and
  opossums.

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Placental Mammals

• Placental mammals develop inside its mothers
  body until its body systems can function
  independently.
• A few species of placental mammals are
  primates, bats, rabbits, elephants, dolphins,
  otters, squirrels, etc.

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Table comparing mammal groups
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Writing Assignment

• You are a documentary filmmaker preparing to make
  a short film about spiny anteaters. First, think
  of a title for the film. Then plan two scenes
  that you would include in the film and write the
  narrators script. Your scenes should show what
  the animals look like and what they do.