Blue whales are the biggest; they are bigger than the biggest known dinosaur. Personally, I think that blue whales are bigger. If I'm wrong, tell me.
great white sharks can grow up to 6.6 meters in length
This is a difficult question to answer, there are many "blue" sharks in the ocean, but there is also a species of shark that is called a Blue shark.
the smallest tare about 1 ft and the biggest are 27 ft
No, a blue whale is a whale and a whale shark is a shark. The blue whale is a mammal and the whale shark is a fish.