ICHIKAWA, Chiba -- Spiral shells, which were an important food source for people in the Jomon Period (around 14,000 to 300 B.C.), have been found inhabiting the Sanbanze tidal flat here in Tokyo Bay ...
The chambered nautilus is a sea creature that belongs in the same class as the octopus. Unlike the octopus, it has a hard shell that’s divided into chambers. As the nautilus matures and grows, it ...
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