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The whelk is a gastropod with a shell described as this shape, like some staircases |
spiral
|
$400 |
DJ |
NATURE |
2014-03-05 |
#6788 |
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(Sofia of the Clue Crew reports from the Field Museum in Chicago.) Snail shells are in a pattern usually called this; they add new coils as the snail ages |
spiral
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$800 |
DJ |
SCIENCE & NATURE |
2002-10-04 |
#4160 |
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The whelk, a carnivorous marine gastropod, has a shell of this shape |
Spiral
|
$400 |
J |
NATURE |
1999-04-26 |
#3381 |
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Hubble classified galaxies as being irregular, elliptical or this shape |
spiral
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$800 |
DJ |
SCIENCE & NATURE |
1992-02-18 |
#1727 |