Birds
• There are over 8,000 species of birds. Birds
have 3 major differentiating characteristics:
wings for flight, feathers, a...
• Other changes are less obvious. The claws and
muscles of a bird's foot are designed to lock and
hold onto a perch even w...
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EDLC 2nd. year. Animal Kingdom: Birds

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EDLC 2nd. year. Animal Kingdom: Birds

  1. 1. Birds
  2. 2. • There are over 8,000 species of birds. Birds have 3 major differentiating characteristics: wings for flight, feathers, and a beak rather than teeth. • Birds have adapted their vertebrate skeleton for flight. Their bones and skull are very thin, making their bodies extremely light. • To support flight also required other changes to their skeleton. Obvious changes are the addition of wings.
  3. 3. • Other changes are less obvious. The claws and muscles of a bird's foot are designed to lock and hold onto a perch even while the bird is sleeping. • A bird's respiratory system is also adapted to make it easier to breathe at high elevations, where air is thinner.

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