Sharks

Crystal River is famous for its manatees, when hundreds flock snout to snout in the warm waters of Three Sisters Spring during winter cold snaps. But there's also a key species hiding in its waters that most people never heard of. We go on a trip to Crystal River, where two scientists are researching bull sharks.

South Florida beach-goers might stumble upon some buried treasure — or at least shark teeth. Experts have some tips to increase your odds.

Authorities say a man bitten by a shark over the weekend on Florida's northeast coast is recovering. Officials from the Nassau County Sheriff's Office north of Jacksonville found the victim aboard a boat on Friday with a severe shark bite on his arm.

Walton County officials have reopened their beaches, but fly purple flags to make beachgoers aware of dangerous marine life.

The attacks off beaches in the Florida Panhandle led authorities to temporarily close several beaches to swimmers on Friday. Beaches were reopened Saturday, with flags warning of high hazards.

A program at the University of Miami pairs teen girls with female researchers as they catch 300-pound sharks. The idea it to encourage more girls to enter STEM careers.

Volusia had the most in the state, with four.

The study from the Harbor Branch Oceanographic Institute shows the greatest concentration of toxins were in the sharks’ stomachs.

Their populations have dropped by 80%, and both could soon be recommended for protection under the Endangered Species Act.

This was the first time a Greenland shark was reported in the western Caribbean, researchers said. This species of shark is typically found in the Arctic and thousands of feet below the ocean surface.

Eugenie Clark, who passed away in 2015, would have turned 100 Wednesday.

Still, the Florida Museum of Natural History's International Shark Attack File says the high number of shark bites and deaths last year was on par with long-term averages.