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Over nearly 30 years, humans removed many polar bears for a variety of reasons, from a population in
Evaluation of a child for cystic fibrosis with a sweat chloride test. Sweat is being collected under
During drought years on the Galapagos, small, easily eaten seeds become rare, le
But tortoises on lusher islands where grass is plentiful and the need to reach into trees not so fre
Measuring the Head Circumference of an Infant or Small Child
Adults in the middle-aged group (37–42 years) score higher on measures of generativity than either ...