||The making of the fittest : natural selection and adaptation, the birth and death of genes, natural selection in humans /
|| Howard Hughes Medical Institute,
Natural selection. ;
Sickle cell anemia. ;
Selection, Genetic. ;
Anemia, Sickle Cell--genetics. ;
||1 videodisc (38 min.) : sound, color ; 4 3/4 in.
Natural Selection and adaptation -- The birth and death of genes -- Natural selection in humans. This trilogy of short films features unforgettable examples of the evolutionary process in action. Each is an adventure of discovery - from the deserts of the American Southwest to the icy Antarctic to the lowlands and highlands of East Africa, where fascinating creatures and pioneering scientists reveal how the fittest are made.