Animals have evolved crab-like bodies at least five times throughout history, a process known as carcinization.

Welcome to Nat Geo Your Shot: National Geographic’s global community for aspiring visual storytellers. Find the community on Instagram @NatGeoYourShot and follow along for hashtag challenges, tips, ...

Carving pumpkins, roasting the seeds for a nutrient-rich snack, and displaying the candlelit designs on your porch are enjoyable fall traditions. But these bright gourds aren’t just for show, and ...