What a handful of Bay Area surfers didn’t know,

“I saw it straight on,” Masturzo said. “And when I saw that white belly go up and the super defined white of pectoral fins I knew what it was. I told everyone around me and went in. It was funny, some people were saying, ‘that’s not cool,’ but I would never say ‘shark’ on a small day to try to clear the water. If it was six-to-eight-foot, maybe. [Laughs.]”Masturzo came in and thought, “I wonder if Surfline caught this? I went straight to the cam rewind and couldn’t believe it. I dropped the phone.”There’s never been a documented shark attack at Ocean Beach , however, a surfer was reportedly bumped in 2005. “I’ve been surfing here 30 years and never seen anything like that,” he said. “Lots of dolphins, seals…we know they’re there but don’t want to believe it. Like, ‘It’s sandy, there’s no kelp, no giant sea lions, it’s great here.’”A handful of guys came in, while at least 30 guys stayed out.Typically, Great White Sharks will breach the water during a sneak attack on prey, coming from deep below and shooting straight up to chomp an unsuspecting seal – hence the high-def, super slo-mo footage seen on. But it’s unclear what the shark at Ocean Beach was after, if anything. As Masturzo mentioned, the area is rife with sea life for sharks to feed on.And Collier commented on another possible reason for breaching: "It could be a form of communication between members of the species signifying dominance within a group, similar to the 'jousting' between male elk and/or deer. [But] we simply do not know."But maybe he just wanted to spook the lineup, thin out the early fall season crowd a bit.+++++++Want breaking surf news, fresh videos, fullscreen photo galleries and more delivered straight to your inbox? Sign up for the Surfline weekly newsletter and 'like' our Facebook page