BRYAN EATON/Staff photo. Kyle Lachendro, 6, of Georgetown, right, and Kaitlyn Foster, 6, of Newburyport took turns putting their hands in ice water then here repeated it, though this time with their hands in a double-lined glove, guided by Tim Booth, filled with solid food shortening. They were at one of several programs this week at the Joppa Flats Education Center, this one on pennipeds--which include seals and sea lions--which shows how layers of fat protect them from cold water.

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