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May 2017
28m 5s

Ann Clarke on The Frozen Ark

Bbc Radio 4
About this episode
<p>Tiny tree dwelling snails, partula, were so abundant across French Polynesia that garlands of partula shells would be presented to visitors to the islands. But when immunologist Dr Ann Clarke joined her husband, the late evolutionary biologist Professor Bryan Clarke, on expeditions to research the unique way this species had developed, a study in speciati ... Show More
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