Colin Tudge (born 22 April 1943) is a British science writer and broadcaster. A biologist by training, he is the author of numerous works on food, agriculture, genetics, and species diversity.

Tudge was born and brought up in south London and attended Dulwich College, from where he won a scholarship to Peterhouse, Cambridge, studying zoology and English. In his career he has worked for World Medicine, Farmers' Weekly and New Scientist, before becoming a freelance writer. In the 1980s he was a regular broadcaster for the BBC, including the BBC Radio 4 science series Spectrum; he wrote and presented The Food Connection; he made one-off documentaries and guest appearances.

He lives in Oxford with his second wife, Ruth West. He was married to former It girl Rosemary Tudge and had three children, Amanda, Amy and Robin, the last being an author of political works.

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