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The Guardian - UK
The Guardian - UK
Lifestyle

How do the pairs of butterflies in my garden maintain their formation?

two brimstone butterflies in flight
Keep close ... a pair of brimstones in flight. Photograph: Dirk v Mallinckrodt/Alamy Photograph: Dirk v. Mallinckrodt / Alamy/Alamy

Pairs of butterflies have fluttered through our garden repeatedly over the last few days. What senses do they employ to maintain their (albeit erratic) formation? Is there anything for the Red Arrows to learn?

Ian Tanner, Peterborough

Post your answers – and new questions – below or email them to nq@theguardian.com

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