The curious minds at What If explore a world where Megalodon sharks had never gone extinct, imagining how these enormous predators would shape oceans, ecosystems, and human activity today. Did Hegseth ...

The scientific wonderers at What If reconsider the safety of our coastlines if the largest shark in history was still a top predator.

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. When did the megalodon shark go extinct, and why ...