There are so many different fish in the sea, but which of them is the biggest of all? The largest animal in the ocean isn't even a fish, but is instead a whale. The average size of a blue whale is 79 ft and 242,500 pounds. That's more than 121 tons! Not only is the blue whale the largest animal in the sea, but it's also considered to be the largest animal in the world. From SI Yachts, this infographic lists the 75 largest underwater species (ranked by their average size) in the world. Other giant underwater creatures to cover the top three largest also include the right whale, which is around 132,300 pounds and the fin whale, which typically weighs about 125,700 pounds -- and both of these are at least 50 feet long! Even the 75th ranked species isn't small, as the giant pacific octopus can be 16 feet long and 110 pounds.
Infographic by: siyachts