Great White Shark
A great white shark pictured in South Africa, Oct. 19, 2009. Getty Images

A chilling video recorded by a diver showing a huge great white shark attacking another shark has gone viral. The footage — featuring the 13-foot-long predator — was filmed Saturday in South Africa.

The video went viral after it was uploaded to content site Imgur. The underwater clip gives a rare glimpse of the killer, nicknamed Scarlet, and a close look at its terrifying jaws.

In the footage, a diver’s cage underneath the water can be seen along with another diver in a smaller cage nearby. A giant great white shark suddenly emerged from beneath the small cage and swam terrifyingly close to the diver who was hanging out of the metal casing.

While it looks as if the shark would attack the cage, a slightly bigger shark appeared. As the sharks approached each other, one of them opened its jaws and tried to sink its teeth into the head of other. The shark that was attacked flipped its head in seconds and swam above the surface of the water, while its attacker swam in the other direction.

In the comments section of the video, users reacted to the video with one user saying: “Ouch. Did you see the size of that gash under the shark before he hit the surface?? That definitely did a lot of damage,” according to Express.uk. Another said: “I did not see that coming.”

One person wrote: “That's brutal!” And another shared: “Nothing's safe in the water!”

Watch the video here.

Great white sharks are ferocious predators. There have been several unprovoked attacks on humans in South Africa, Australia, and even in coasts of the United States. Most times, sharks target divers and swimmers, who may have wandered away from the shore. While in some cases, the victims escaped with bites on their hands or legs, sometimes encounters with sharks have turned fatal.

Here are some fun facts about the great white sharks:

1. An average great white shark is about 15 feet long but some may also grow to 20 feet.

2. The largest captured great white shark in Australia was 23.4 feet long.

3. They weigh an average of 1,500-2,400 pounds at maturity.

4. The heaviest great white shark ever recorded in the wild was estimated to weigh 7,328 pounds.

5. Great white sharks' blue-gray on the dorsal, or top, part of their bodies help them blend in with the bottom of the ocean.

6. Female great white sharks grow much larger than the males.

7. Sharks use electromagnetic fields to feel vibrations in the water of potential prey.

8. Great white shark has a bite force of 4,000 psi (pounds per square inch), 10 times the bite force of a lion.

9. Sharks can jump up to ten feet above the water surface to catch and kill a prey, a behavior known as “breaching.” Their average breach speed occurs at 25 mph.

10. Great white sharks have five rows of teeth with 46 teeth in each row.