The tight spiral of the shell of a marine mollusc. As the animal grows the mantle secrets calcium carbonate to increase the shell size
The tight spiral of the shell of a marine mollusc. As the animal grows the mantle secrets calcium carbonate to grow the shell to accommodate the increase in body size.
Size: 5800px × 4247px
Location: Zanzibar, Tanzania
Photo credit: © Nick Greaves / Alamy / Afripics
License: Licensed
Model Released: No
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