In 2017, on the beach of Hangsbai, a famous shark viewing spot in The Cape Province of South Africa, there were 5 corpses of great white sharks, these dead great white sharks are 4.5 to 5 meters long and weigh more than 1.3 tons, their causes of death are the same, leaving a large hole in the abdomen, and local marine zoologists are very puzzled!
After dissecting it, the local marine conservation organization found that the sharks' livers were bizarrely missing, and judging from the tooth marks left on the surface of the body, this may have been the work of killer whales! How can an invincible shark in this world touch a killer whale? Why do killer whales eat the shark's liver and leave the whole carcass alone?
Killer whales hunt sharks, turn them in turn, and great white sharks are like dead!
Great white sharks, also known as man-eating sharks, are the largest predatory fish in the ocean, females can be more than 6 meters long and weigh 2.2 tons, but most of them are about 3.4-4 meters (males) 4.5-5 meters (females), they are many marine mammals such as seals, sea lions and even seabirds, and they are not picky eaters, are opportunists, extremely aggressive, and directly attack when they see prey.
So in Hollywood blockbusters, seeing the iconic shark fins approaching, it must be a sign of disaster, in fact, it is almost the same, if you encounter a great white shark while swimming, it must be more fierce!
But killer whales are not vegetarians, not only have a very high IQ, but they have a great set of shark hunting, marine biologist Mary Rowlinson said that killer whales hunt sharks is not uncommon, although sharks are the top predators in the ocean, they are completely powerless when they encounter killer whales, and killer whales paralyze and kill them in an extremely rare way!
Killer whales will directly ram or bite their backs to make the shark's stomach soar to the sky! Because the killer whale is larger, with a body length of nearly 10 meters and a weight of more than 9 tons, the shark is not without a chance of winning when facing this size, but the killer whale adopts the kind of murderous way that the great white shark has no chance of winning.
The two are very different in size
Once the shark is reversed, it will enter a tonic quiescence state, at this time the shark's brain supplement will secrete a large amount of neurotransmitter serotonin, when the serotonin concentration increases, the shark will enter a "sleep" state, trance, equivalent to human loss of consciousness.
The shark was disemboweled
At this time, the shark is a piece of meat on the cutting board, allowing the killer whale to bite, and the killer whale uses its fangs to tear open a hole directly under the shark's pectoral fin, and then uses the sucking method to directly withdraw the internal organs, this part is the shark's liver, and the purpose of the killer whale is very simple, it is for the shark's liver, maybe they like to eat the shark's liver, after taking it, the shark will not die immediately!
But whether the shark continues to be in a tonic stationary state or returns to swimming, it will die quickly, the first is the tonic static state so that the shark gills have no water flow (the shark must swim to pass through the water flow, the gills can get oxygen), the second is the shark without a liver, it also lives for a long time!
Killer whales have no fear of attacking sharks and only take livers, with their strong strength, killer whales are the largest species in the dolphin family, it is equally aggressive, and its iconic black and white combination and huge size, easy to distinguish from dolphins, but they are like dolphins, almost no attack!
Are killer whales really killer whales?
Another name for killer whales is killer whales, and it is true that there are many cases of killer whales attacking people in marine parks, but it must be noted that there is almost no record of killer whales attacking people in nature, and marine biologists also point out that killer whales have a high IQ, and these killer whales are attacked in long-term captivity, which is not their daily attack behavior.
Tilikum and Haida II and Nootka IV are in the same pool
On February 20, 1991, a Tirikuum killer whale in Pacific Ocean World in Vancouver, Canada, attacked a 20-year-old Keltie Byrne, a part-time marine biology student who accidentally fell into the water, triggering a chase by two other killer whales that treated her as a toy, eventually leading to her death.
On July 6, 1999, Tirikuum, which had been bought by SeaWorld Orlando, attacked humans again, but there was no evidence that It was Tirikuum attacking, because the deceased was Daniel Dukes, a 27-year-old who had just been released from prison, who broke into the pool of killer whales, took off his clothes and swam inside! He was found dead for a long time, with multiple bites and abrasions on his face and body!
These aggressive behaviors all occur in captive pools, and Tilikuum has been in captivity for decades, and it is difficult for killer whales in the pool of tens of meters to turn around a few times, what they need is a vast ocean!
BBC record: Killer whales attack sailboats in a frenzy
In the summer of 2020, the BBC reported the news of a killer whale attacking a sailboat, a group of killer whales frantically attacking the sailboat near the coast of Spain and Portugal, crashing the rudder, tearing up the falling water, zoologists are a little confused, this is not the style of killer whales, why did killer whales become like this?
And according to the report of David Smith, who was driving a catamaran about 13.7 meters long to the customer, he encountered a group of killer whales, which rushed the ship, knocking the sailboat out of the strange line at sea, and David Smith also found that their attack purpose was very clear, only attacking the rudder!
Once the rudder was torn, it would be impossible for the sailboat to move, but fortunately the killer whale did not completely destroy the rudder, but tore it for a while and then flew away. According to statistics, there were more than 40 cases in the summer of 2020, the first report was in July, and the most recent report was at the end of October!
There are many sailing ships that are not so lucky, crashing rudder floating on the surface of the sea, and swarms of killer whales still rush up to tear the rudder plate, directly biting it to pieces before willing to leave.
Biologist Dr. Renault de Stephanis
Biologist Dr. Renault de Stephanis speculated that the killer whales that attacked the rudder of the ship may have been injured by the ship's propeller at one time, and then the killer whales believed that this flake caused them to be injured, so the killer whale swarm would attack all the rudders along the way, and the sailboats were the best targets, because most sailboats did not have a propeller power unit, they could only attack the rudder, causing it to break!
This means that human marine activity has indeed seriously affected marine life, and perhaps one day, killer whales will change their instincts to attack people, because it is not known which god will offend the killer whales one day, and at that time, perhaps people who have been injured for a long time at sea may be people who have been making a living or exercising at sea.