Cape Cod shark researchers have reported the first confirmed great white shark sighting of the season, as more eyeballs were on the water for the unofficial start of summer. The white shark chomping on the seal on Sunday was the Atlantic White Shark Conservancy’s first confirmed sighting of the season, according to Massachusetts-based shark expert John Chisholm, who is with the New England Aquarium and who has been tracking shark sightings for many years. “We’ve had a couple of other unconfirmed sightings, but this is the first one where we actually got to see the shark,” said Chisholm, “We know...