Scientists confirm a record-breaking green anaconda in the Amazon, revealing new species clues, surprising sizes, invasive risks, and unanswered questions about even larger snakes still hidden within ...

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

Four million years ago, the landscape of Northern Greece was the territory of a huge snake, a true biological titan.