Sharks swimming closer to crowded beaches than previously thought, study says

"We were surprised to find that the sharks we tracked spent so much time near the lights and sounds of the busy city, often close to shore, no matter the time of day," the study author said.

OdySea Aquarium unveils new shark exhibit
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Did you know that a shark can lose up to 30,000 teeth in its lifetime and can live up to an average of up to 20 years?