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Long before great white sharks appeared, much larger ancestors roamed the ocean....
Thu, 12/17/2009 - 17:55
Shortfin Mako Shark
The shortfin mako shark (Isurus oxyrinchus) is found offshore in tropical and warm...
Three bar jacks and a female tiger shark, nearly 4-meters long, swim off the coast...
Fossil tooth spiral
This fossil tooth whorl of the ancient shark Helicoprion, dates back 290 million...