Instant Genius is a bite-sized masterclass in podcast form. In this week's episode, we talk to Helen Pilcher, a biologist and science author.

She discusses whether we can bring back a species after it has gone extinct, and how the research could help us protect species under threat of extinction.

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Alice Lipscombe-SouthwellManaging editor, BBC Science Focus

Alice is the managing editor at BBC Science Focus Magazine. She has a BSc in zoology with marine zoology. Her interests include natural history, wildlife, the outdoors, health and fitness.