MONTAUK, N.Y., June 21 (UPI) -- Tyler Winklevoss, one half of the Mark Zuckerberg-suing, so-called Winklevii twins, posted a video of a shark off the coast of Montauk, N.Y., to Instagram.
Winklevoss was in a boat near Montauk when he spotted the fin of a shark in the water.
He posted the short video to Instagram Friday with the caption, "Shark Attack! Montauk."
Sharks aren't all that rare in these waters, in fact, a great white shark dubbed Mary Lee was spotted in the area in 2013.