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Letter: Ancient spirals and squatter lizards

Published 22 July 2015

From Roger Prater

I am puzzled by the query over why the entrance tunnel is spiral. I imagine it is because the offspring of those lizards that dug a straight shaft never managed to climb out to grow and reproduce.
Watford, Hertfordshire, UK

Issue no. 3031 published 25 July 2015

Â鶹´«Ã½ issue 3031 cover

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