Stories by Raegan Scharfetter

Raegan Scharfetter is a freelance science journalist based in Dallas, Tex. Follow Raegan Scharfetter on Twitter @raescharfetter

Newly Discovered Saber-Toothed Predator Shows How Hypercarnivores Evolved

A well-preserved fossil introduces a new species that lived in what is now California around 42 million years ago

Continue reading with a Scientific American subscription.

You may cancel at any time.