Green anacondas can grow to almost 9m in length and weigh more than 250kg – that's about the weight of a male grizzly bear.

Snakes have adapted to nearly every continent on Earth, thriving in a range of habitats, from steaming rainforests to arid ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. In the humid swamps of what is now Colombia, there was once ...