Facts about Vertebrates and Invertebrates
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Animal Diversity Web
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Introductory Information from Fact Monster
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"Animals with an internal skeleton made of bone are called vertebrates."
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Movies about Invertebrates, Vertebrates and the Animal Kingdom
See Classification and more
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Of the million or more animal species in the world, more than 98% are invertebrates.
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Fast Facts
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One of Two Major Animal Groupings
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