This is off topic with Animal Jam, but here is my favorite picture of the Megalodon Shark! (Charcarodon Megalodon) It is extinct, but lived when the dinosaurs existed. The picture is not real, but it was edited to show that that's how big it really was when it was living.
And here are some drawn or exaggerated or edited pictures too:
The last one isn't fake, well the picture is fake, but the measurements aren't.
And remember, IT IS EXTINCT as in NO LONGER EXISTS. So don't worry about it.