Over a year after a 15-foot great white shark was found dead with mysterious ... the journal explained in its report. Although its head, spine, and fins were intact, its midsection, including ...

It even popped its head up at one point, showing off its triangular teeth. Dr. Mahmood Shivji, a marine scientist at Nova Southeastern University, said something is off with this shark.

One of those sharks unfortunately washed up dead on a Cape beach earlier this week, as researchers responded to Wellfleet Harbor and took samples from the massive 6,000-pound basking shark.

A 9-foot great white shark, recently tagged by OCEARCH, has made its way to Florida, sending pings from its journey along the state's east coast.