The accompanying footage, captured this week off the Kona Coast, shows a paddler being trailed by a tiger shark measuring at least 10 feet. Tiger sharks are considered the most dangerous of the 40 ...

UNC researcher Chelsea Black partnered with Indonesian shark fishermen. Together, they discovered the third-known tiger shark hotspot, and are fighting to protect it.

"Larger ones like tiger sharks are rarer, but they're so big that even a minor bite could be fatal," she added. "Blacktips are the most abundant, so they cause most of the injuries in this area.