The snail’s shell diameter averages about 22 to 30 millimeters (.87 to 1.18 inches). Each snail’s shell has a unique combination of stripes and colors, so no two are exactly alike. These snails eat ...
Generally, a shell is an evolutionary trait that allows a creature to retreat from predators. This is the case for almost all snails. But at least two species of snails use their shell in a much more ...
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