The largest living things in the world call the sea their home, and in fact, the largest creature to have ever lived on the planet currently resides in the ocean.
Some of these creatures remain elusive and wildly mysterious.
That's what happens when you live in a place as unexplored as the ocean.
And that’s also why it has been especially difficult to nail down the size of certain sea creatures.
At least it was until a group of scientific researchers embarked on a comprehensive survey and review of past studies for the largest known marine species.