Geneticist Dr Adam Rutherford relies on refrigeration to preserve the unique DNA samples that underpin his lab work. Furthermore, as he explains to Dr Anna, fridges are good for keeping his beer cold! In an episode all about research and development, Adam and Anna are joined by Marie-Pierre Paquin, Head of Science and Partnerships at Rio Tinto, to explore how a mix of curiosity, diligence and data leads to scientific breakthroughs. Listen to find out how many periodic table elements are in the human body, why some parts of the world are richer in DNA samples than others, and why certain crustaceans have blue blood.

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