Yes. There have indeed been shark spottings in the canals of Venice. In 1956 an image of what was determined to be a large bull shark in the canals was verified by marine biologists at the Univestity of Bologna. Another sighting was documented and made headlines in the the summer of 1987.
has there ever been...go back to school
No
the surfer is weird
yes
there have been five shark attacks ever to occur in Ireland.
No. Michael Phelps has not ever reported to anyone nor has anyone ever reported to anyone else that, at one point, he was eaten by a shark.
The oldest fossilized shark remains that have been found are teeth, identified as the megalodon.
There is no verifiable information of a shark having ever been found in the Colorado River. However, the Bull Shark is capable of living in fresh water, so it is possible.
yes one has
yes.
There have been three shark attacks recorded in Delaware since 1690.