How are scientists certain that Megalodon is extinct when approximately 95% of the world’s oceans remain unexplored?

Question

Would like to understand the scientific understanding that can be simply conveyed.

Thanks you.

In: 5134

Answer 1

We haven’t seen any. And we’re tracking plenty of large and small marine animals. We track great whites and other large rare sharks. Most logically, they’d have to be where the food is, and a shark that size would need a lot of food. They were animals, not supernatural beasts. So we’d have found them by now.

The evidence we do have for them is millions of years old, and cuts off. That’s a fairly good sign of extinction. Not foolproof, but good.

Besides, extraordinary claims require extraordinary evidence. The burden isn’t on proving it IS extinct, it’s on proving it ISN’T. In other words, like the Coelacanth, it will remain extinct until someone finds one.