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Project Noah Nature School
Bird eggshells - Probably a duck or egret shell. The structure and composition of the avian eggshell serves to protect the egg against damage and microbial contamination, prevention of desiccation, regulation of gas and water exchange for the growing embryo.
Nests along the shore of lakes.
Spotted on Jun 13, 2012
Submitted on Jun 16, 2012
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