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Swirl By Swirl by Joyce Sidman

Swirl By Swirl : Hardback : Houghton Mifflin Harcourt Publishing Company : 9780547315836 : 054731583X : 13 Jul 2012 : What makes the tiny snail shell so beautiful? Why does that shape occur in nature over and over again - in rushing rivers, in a flower bud, even inside your ear? The authors not only reveal the many spirals in nature - from fiddleheads to elephant tusks - but also celebrate the beauty and usefulness of this fascinating shape.

£12.99