Fossil teeth of extinct megalodon sharks have grooves made by other megalodon teeth, hinting at violent encounters between ...
Its serrated teeth were handy for slashing through skin ... Smithsonian Institution Though the glorious big-toothed shark is no longer around – and lived long after the dinosaurs – it is ...
Shark sex is a bitey business, with males grasping females with their teeth during the act. The resulting wounds are helping scientists to figure out when and where sharks are doing the deed.
They produce teeth continuously ... NOVA: Do sharks have to roll over to bite? Gruber: No way, Jose! Sharks have a unique, loose jaw suspension that allows them to raise their snout and loosen ...
Although mating has never been scientifically observed, scars on female sharks suggest that males use their teeth to hold onto while mating. Based on their estimated growth rate, length and number ...
Greenland sharks have narrow, pointed upper teeth and broader, squared teeth on the lower jaw. Holding large prey in position with their upper teeth, they roll their head in a circular motion ...
Remarkably, fossil shark teeth are also incredibly abundant. Sharks ruled the earth's oceans for 400 million years, and every individual grows and sheds thousands of teeth in their lifetime.
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