Photo of the Day #222: Shells

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In previous years I have had the good fortune of looking for fossils in the Inversand marl pit not long after a rain storm, the water washing away the sediment around small fossil shells and thus placing them on top of a little, sandy pedestal. I saw something similar this past weekend along the beach in Delaware, the recent action of water giving a number of shells their own little perch. The shells were small, in many cases little more than shell fragments, but as the photo above illustrates they still made for interesting subjects.


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This is a repost of a review that is timely, given this week's focus on setting up your Linux server and changing all your computers over to Linux and so on.
Any snail enthusiast knows that their favorite creatures' shells follow certain stead-fast rules: They are cone shaped, right handed, and spiral on a single axis logarithmically.
Also, master of molluscan anatomy, and clever tool user.
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.