Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. This one-ton turtle once ruled South America’s rivers — ...

Turtles today are often slow-moving, modestly sized creatures, but their ancient relatives were quite different. Long before ...

Ever consider the question of whether a turtle can truly pull its head into its shell like a cartoon representation in a ...

Great Smoky Mountains National Park is one of the most biodiverse places in the world, so it’s no surprise that many of the plants and animals chosen as symbols of the two states it straddles — North ...