White sharks were chased to death, the culprit this time was not human

What could make one of the greatest predators of the ocean collapse? The answer is another monster.

The size is large, the teeth are hundreds of sharp, jagged sharp teeth like a meat grinder, the eyes are lifeless and white - all have turned giant white sharks into one of the top-of-the-chain creatures. eat under the ocean.

But that natural world, there are dangers, even with the leader. If not careful, white sharks can lose their lives at any time, like the new shark carcasses washed up on the coast of South Africa.

Picture 1 of White sharks were chased to death, the culprit this time was not human
One of the ill-fated fish washed ashore.

More precisely, since the beginning of 2018, there have been at least 5 reports of huge white shark bodies washed ashore. Their size, the smallest one is 2.7m, the largest is up to 4.9m - that is, the formidable category of the ocean. Yet all of them suffered horrible wounds on their bodies, some of them had holes in the depths of their dorsal and liver fins.

The question is what can handle the monsters called "destroyers" of the ocean? The answer must be another monster, and it is a killer whale (killerwhale or orca).

Specifically, in places where the body of sharks washed ashore, a group of killer whales was also found. Based on the size of the wound, the white shark was killed by the killer whales.

Picture 2 of White sharks were chased to death, the culprit this time was not human
It is not uncommon for killer whales to hunt sharks.

In fact, it is not uncommon for killer whales to hunt sharks. Depending on the region, groups of killer whales will hunt different prey. As in North America they only hunt fish, while the Antarctic group hunts minke whales. In South Africa, they hunt sharks and rays - the largest creatures in this sea.

The hunting of killer whales is also very cruel. They plugged their teeth into sharks, pulled out the liver, and left the body where they wanted to go. According to oceanographic experts, killer whales target the liver for a reason.

For sharks and rays, liver is home to a lot of nutrients, providing a huge amount of energy. Because unlike other common fish, sharks do not have bubbles to create buoyancy. Instead they possess a very oil-rich liver, which controls the repulsive force of the water, while also energizing themselves. Somehow, killer whales know this, and as a result, the coastline corpses we mentioned above.

Picture 3 of White sharks were chased to death, the culprit this time was not human
The corpses of a white shark died on the shore.

The most impressive thing here is that killer whales can easily defeat sharks that are over 5m in length. Surprisingly, the evidence suggests that whales can take advantage of the shark's deadly weakness - a phenomenon known as tonic immobility.

The explanation of this phenomenon is that, in general, sharks and rays when reversed will fall into a state of temporary immobility. Taking advantage of that, divers can, make them immobile to mount track positioning and perform some further research right in the water environment.

Picture 4 of White sharks were chased to death, the culprit this time was not human
The process of hypnotic sharks by a diver.

But killer whales also know that. Some reports in the US West Coast have recorded that killer whales attacked a shark from the side, flipped it up and kept its head down. With such life-and-death battles, just one second of neglect is enough to pay dearly. Over here, sharks remain motionless for minutes.

Moreover, some sharks cannot breathe when they stop swimming. In other words, they can actually drown, and the one who immerses them is the killer whale.

However, the reason why shark carcasses appear so much in 2018 is still a question that cannot be answered. Please wait and see what the future will be about science.