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"mammal"
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A Squalodontid Success
On a beach in Piña, Panama the tide is rolling out. Faint outlines of skeletal...
Wed, 06/22/2011 - 17:47
Lesson Plan
It’s Sedimentary, My Dear Watson
In this introductory activity, students analyze core sample data to identify...
Mon, 03/15/2010 - 14:56