How did speech evolve?

Ask the Naked Scientists

English - November 25, 2016 00:00 - 22 minutes - 20.4 MB - ★★★★★ - 60 ratings
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How did speech evolve, why do you need bacteria and fish food for aquaponic systems, do growth factors in anti-ageing creams really work, what treatments are there for allergies and how do UV lights vaporise fat in commercial kitchens? Plus, delving into the secrets of sleeping sickness. Like this podcast? Please help us by supporting the Naked Scientists