Modern anacondas and pythons are massive, but fossil evidence shows they are not even close to the largest snakes to ever ...

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 ...

Quick Take Reaching a size 5 times larger than males is a biological benchmark for breeding females. Holding breath for 10 minutes underwater dictates the specific aquatic reach of the green anaconda.

The newly named northern green anaconda or Eunectes akayima is reportedly the largest in the world, capable of exceeding lengths of 20 feet — with anecdotal reports of serpents measuring 25 feet long.

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