Colin Pennycuick obituary

Leading researcher in animal flight who helped explain the workings of birds and bats

Colin Pennycuick, who has died aged 86, was the pre-eminent researcher in animal flight over the last century. He focused on the flight of bats and birds (and their possible ancestors), and asked the question: how do they work? To answer this deceptively simple question he brought to bear a mix of sharp logic and original and practical invention.

Though he sought to ground his work in the rigorous application of physics and mathematics, he was not satisfied with abstract results and conclusions by themselves, but always sought to democratise his findings, first to the biological sciences community and then to the huge population of lay people fascinated with birds and their flight escapades.

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