Scientists recently discovered a new species of green anaconda in the Amazon rainforest. A new Nat Geo series shows the ...

Quick Take Reaching a size 5 times larger than males is a biological benchmark for breeding females. Holding breath for 10 ...

Discover the monster snake that makes all modern snakes seem small by comparison. Learn about Titanoboa, the biggest snake to roam the Earth!

Generally, when we’re stuck in traffic, we assume it’s due to construction or an accident. However, drivers in a remote part of Brazil were shocked to discover their commute was delayed by a giant ...

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 ...