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Contact: David Orenstein
david_orenstein@brown.edu
401-863-1862
Brown University
Caption: When they moved from water to land, animals needed to rid themselves of CO2 to avoid acid buildup. Some, like Eryops, used bone in skin and scalp to neutralize the acid, an approach still used by some modern animals.
Credit: Christine Janis and Museum of Natural History, Paris
Usage Restrictions: With credit
Related news release: Did bone ease acid for early land crawlers?
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