Typically, snails coil as they grow. The exact shape and characteristics of the coil are known to be a combination of genetic and environmental factors, depending on the snail. There is an interesting story involving snails and the young Jean Piaget. Piaget is famous for his work in psychology, but before that, when he was quite young, he worked with birds and mollusks. His work was published and otherwise disseminated and experts in these areas, unaware that he was a teenager, assumed he was an adult expert on natural history.
I remember my first solar eclipse. I was a kid, and it was the one Carlie Simon sang about, in March 1970.
(The eclipse reference is just past three minutes. Some other time we can argue over whether or not Carlie, singing in this video on Martha's Vineyard, was referring to the March 1970 eclipse or the July 1972 eclipse, but I'm sure it was the former, because that's the one everybody got all excited about.)
ScienceOnline 09 - Interview with Greg Laden scienceblogs.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from scienceblogs.com Daily Mail and Mail on Sunday newspapers.