Ulp!

In this example of Turbinella pyrums side by side, it looked obvious to me
that the row of knobs and suture line on the sinistral has a steep angle
whereas the dextral is nearly horizontal.

I'd known about the perceptual effect on shell collectors but I figured this
was surely an exception.

OK, I got out the mirror and held it up to the computer. Presto! the slant
disappeared! Que fantastico! now the dextral appears to have a slant!

We shell collectors see things differently. (Now, would the flesh of the
sinistral TASTE different?)

David Kirsh
Durham, NC


>
> They are! Hold a mirror in front of them and you'll be surprised. The
> skewing apparently is in the brain (weird enough, people who never collected
> shells do not see it!)
>
>
> Marien Faber
> www.mollus.nl

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