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.

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 ...

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.

There are creatures lurking in the depths of South American rivers that can overpower crocodiles, deer, and anything else that wanders too close. Anacondas are among the largest snakes on Earth, and ...

A mechanical constraint prevented the Titanoboa from lifting more than 1/5 of its body to strike. Counter-intuitively, the world’s largest apex predator was unearthed deep within the Cerrejón coal ...