It's a good thing this incredible shark encounter was caught on film, or else nobody would believe it.
This week, marine biologist Mauricio Hoyos Padilla shared footage of the exact moment he came face-to-face with a massive great white shark while diving near an island off the coast of Mexico. The ginormous predator can be seen casually circling Padilla's protective cage, dwarfing the diver with her robust frame.
And what did Padilla do in that moment? He popped out to give the big girl a high five.