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Fossil tooth spiral
This fossil tooth whorl of the ancient shark Helicoprion, dates back 290 million...
Two fossilized teeth from a megalodon (Carcharodon megalodon) dating back more than...
Giant Megatooth Model
A life-sized model suspended over visitors at the San Diego Natural History Museum...
Citizens of the High Seas
In a world where land is partitioned into countries with defined borders, the ocean...