Weymouth Police posted this photo of the water off Weymouth around noon today and report:
The Weymouth Harbormaster and Animal Control Officer responded and searched the area but did not observe anything. Photos and video were shown to experts who could not determine if it was in fact a shark however they could not rule it out. It is possible that it was an ocean sunfish mistaken for a shark which is common occurrence. Ocean sunfish are very large often swim near the surface because they feed mainly on jellyfish. Their protruding dorsal fins are sometimes mistaken for those of sharks. Ocean sunfish are docile and not a danger to swimmers.