Oxford, UK. 16th May, 2014. Mayfly (Ephemeroptera) resting on a twig in the early hours of light, Oxford, 16/05/14. The mayfly is famed for having just one day of adult life in which it finds a mate, breeds, lays eggs and dies. They do this, en masse, some time aorund the middle of May. Credit: Andrew Walmsley/Alamy Live News

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Photo credit: © Andrew Walmsley / Alamy / Afripics
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