King cobras are the longest venomous snakes in the world and can reach 18 feet long.

Green anacondas, the heaviest snakes on Earth, thrive in South American swamps and rivers. These apex predators, reaching ...

The green anaconda, an aquatic snake often found in South America's Amazon region, is the largest of its kind — measuring nearly 21 feet in length, according to experts. Now, the snake behemoth has ...

It turns out the world's heaviest snake isn't quite what it seems. During the filming of an upcoming National Geographic series, it was discovered that the green anaconda is actually two genetically ...