A snake catcher in South Africa was walking in the wild along with his friends when he stumbled upon a rare sight -- two huge green mambas mating.

Nick Evans, the snake catcher, took to Facebook on Monday to share his experience. Evans said the two venomous snakes weren’t mating at first, but soon got into the position to begin mating. The incident took place in Durban on Saturday.

"The two Greens weren't actually mating when we first saw them. But soon the female started moving, and the male quickly linked up with her. Their tails intertwined, and they were locked, mating. It was fascinating to watch. After a while, they moved higher up into the canopy, and we eventually left," Evans wrote.

He said they came across the same snakes the following day but this time, they were a meter apart from each other.

"They were there the next day, yesterday, although not mating. They were relaxing about a meter apart. There's a chance they have been together a few days," he said.

Evans said in the next three months, the female will find a place to lay her eggs "and then she'll leave them, not offering them any protection."

"About 2-3 months later, they'll hatch, and go their separate ways. Many will be eaten by the likes of birds, genets, and maybe Mongoose. If they all survived, we'd have an overpopulation. And with Greens Mambas, that is definitely not an issue at the moment," he said, adding these reptiles are losing habitat.

The eastern green mambas are highly venomous and native to the coastal regions of southern East Africa. They can grow up to 7 feet in length and spend most of their time in trees. They usually avoid human contact and attack only when they are bothered. Evans said in the Facebook post a female snake "can be mated with by more than one male. So her clutch of eggs could be from 2-3 fathers!"

Along with the post, Evans also shared two photos of the mambas mating. The photos have since gone viral with people calling them "incredible" and "wonderful."

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