"Evolving Switches, Evolving Bodies" and "Got Lactase? The Co-evolution of Genes and Culture," are the fourth and fifth films in the series "The Making of the Fittest," which features unforgettable examples of the evolutionary process in action. Each film is an adventure of discovery--from the postglacial lakes in southern Alaska, to the depths of the fossil record, where fascinating creatures and pioneering scientists reveal how the fittest are made.
One disc with two short films, approx. 15 min. each.