From the depths of our oceans come mysteries that challenge everything we know about marine life. Join us as we explore bizarre and terrifying sea creatures that blur the line between science and nightmare! Our countdown includes the transparent-headed Macropinna microstoma, immortal jellyfish, gigantic oarfish, and cannibal great whites. Which oceanic mystery sends chills down your spine? We dive into everything from the HMS Daedalus sea serpent sighting to the possibly still-living Megalodon! Learn about the colossal squid's terrifying hooks and the potentially massive Leptocephalus Giganteus eel that might explain sea serpent legends. The ocean depths hold secrets that will keep you awake at night!