Is human evolution speeding up or slowing down?

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Speaker: Laurence Hurst

In the past 3,000 years, many populations have evolved genetic adaptations to their local environments. People in Siberia and the high arctic are uniquely adapted to survive extreme cold. The Bajau people can dive 70 meters and stay underwater for almost 15 minutes. So what are other recent changes? And will our technological innovations impact our evolution? Laurence Hurst investigates. [Directed by Philip Piaget & Rikke Planeta, narrated by Jack Cutmore-Scott, music by André Aires].