
From 20 million to 3.6 million years ago, Earth's oceans were dominated by an enormous species of shark called the megalodon. The scientific name, Otodus megalodon, means "giant tooth" — and it's easy to see why. With teeth up to three times the size of those of a great white shark (Carcharodon carcharias), the megalodon also reached lengths of 60 feet (18 meters) — making it the ultimate apex predator until it became extinct.
Yet rumors persist that these supersized sharks are still alive, with TikTok and YouTube videos speculating on how they might have survived gaining millions of views. Is it really possible for the megalodon to be alive today, lurking somewhere in the ocean?