Diners were treated to an unexpected nature show when a harmless basking shark swam through a Block Island pond.

He swiftly invented a one-person, fiberglass submarine known as the SOS, or Shark Observation Submersible, and got right back to studying sharks up-close in their underwater environment.

More than a fanciful shark-octopus hybrid featured in low-budget sci-fi films of the 2010s, the "sharktopus" has been spotted in real life - well, kind of. The sighting was not that of some mish ...

A 1,400-pound white shark named Breton pinged off the coast ... what I thought I saw in the water was a submarine, and I was waiting next for the periscope to pop out of the water,” charter ...

“But it never did ... and then the submarine turned into something that had giant teeth and a giant eyeball,” he said. More great white sharks in Florida: Shark cam captures Florida close ...