Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. The extinct Megalodon, meaning "big tooth," was an apex ...

To mark the 250th anniversary of the United States, we’re cataloging 25 objects that define the country’s history. The megalodon was one of the biggest fish that ever lived, with seven-inch-long teeth ...

Long before Megalodon ruled the seas, something just as unsettling may have lurked in the depths – giant octopuses the size of whales. A new analysis of more than two dozen Late Cretaceous-era fossils ...