I'm not sure it was a whale shark but the river in Perth where sharks have been sighted is the Swan River.
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.
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.
Shark cartilage can be used to easily battle off cancer in a quick and easy way, there has been known side effects of using shark cartilage, but nothing serious has been reported.
Good question there was never a bull shark in the delawere river plus a shark can go from an ocean to a lake or a river but there might of been one but the people should not have went swimmming there that there was a shark in the river but good question! :)
Shark attacks are extremely rare in the Puget Sound. While sharks have been observed in the area, there have been no reported attacks on humans in recent history.
White Shark. The White Shark, more commonly referred to as the "Great White," has been reported to be involved in more attacks on humans than any other shark.
bull sharks are in the Mississippi river and therefor they are in Wisconsin. Bull sharks are abundant in the lower Mississippi River and are also found in Minnesota up the Mississippi. Bull sharks have also been reported in an attack in Lake Michigan, possibly up the St. Lawrence River from saltwater to freshwater.
Bull sharks have been found 2500 miles up the Amazon River.
Yes, the Bull Shark is capable of living in fresh water, so it is possible. However, there is no verifiable information of a shark having ever been found in the Colorado River.
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.
The Great Lakes are open to the ocean through the Gulf Of St. Lawrence and St. Lawrence River. The St. Lawrence River also has a very powerful current. Theoretically a shark could get into Lake Michigan through canals from the Mississippi or the ballast water from ocean going ships, but given the lakes low temperature all year round I doubt they would survive very long. The Amazon River is a natural habitat for bull sharks and is directly open to them whereas the Great Lakes are both cold and difficult to enter. The restricted access and environment would mandate a compelling reason for bull sharks to migrate to the lakes and there really isn't any. Additionally, no bull sharks have been spotted in the Saint Lawrence. Any bull shark that could enter the Great Lakes would die before reaching Lake Ontario.