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An archaeologist arranges a deep-sea core.
Photo

Sediment Cores

 An archaeologist arranges a deep-sea core from off the coast of Britain. These...
Forams are tiny single-celled organisms.
slideshow

Foraminifera

 Microscopic, single-celled organisms called foraminifera have a fossil record that...
Thu, 03/25/2010 - 16:23