Most of popular science's theories on dinosaurs are probably wildly inaccurate and there are probably some dinosaurs still living in the deep recesses of the earth (deep sea, deep jungle, etc)
Discussion
Ala leviathan/behemoth in the Bible, depictions of man + dragons in many ancient art around the world, etc
Megalodan. Right?! 99.999% unlikely, but just in case, I still ain’t going down in a submarine to Mariana Trench like Jason Statham
How else do you think they hide human giants' skeletons in museums?