Evolution of modern birds, Class Aves

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Evolution of modern birds, Class Aves
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(No Transcript)
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Bird body plan
Bird wing
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Crow skeleton -gt
Archaeopteryx skeleton ?
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Pneumatized bone of birds
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Bird flight perching muscles
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Bird bills or beaks
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Bird respiratory system
Follow a single volume of air through respiratory
system
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Salt secretion glands of gull
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Bird egg structure
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Bird wing forms
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Penguins break up the soccer game on Antarctic
ice shelf
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Chillin with the penguins beer must be drunk
before freezing