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Grades 6-8

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Curriculum Materials

Transformation of the Biosphere: Introduced Species

It's not just humans who have jetted to remote regions of the world. For better or worse, international commerce and air travel have helped the global exchange of species and the spread of disease.

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Interactive

Bio Poll

If you could bring back an extinct bird, which would it be? Make your opinion count!

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Activity

Calculating a Biodiversity Index

A Biodiversity Index gives scientists a concrete, uniform way to talk about and compare the biodiversity of different areas. Learn how to calculate this number yourself.

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Curriculum Materials

Field Guides

Whether you want a general-purpose field guide or one that focuses on insects native to your corner of the world, you're sure to find the perfect guide in this list of more than 20 titles.

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Diagram

Types of Oak Leaves

Long and narrow like a feather or small and symmetrical like a rose petal—the variety of oak leaves runs the gamut. See if your leaves match any of the 12 varieties featured in this sheet of hand drawings.

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