Friends, killer whales are not whales, but cute big dolphins! Also known as the middle of the sea street slip, the giant panda in the waves.
In the ocean, killer whales have almost no natural predators, so they play with other small animals all day long when they are bored, and the photo of the seal flying into the sky must be very familiar to everyone.
But what do killer whales have to do with great white sharks?
Great white sharks, that is also very strong and cruel!
Unfortunately, no matter how powerful the great white shark is, in the eyes of the killer whale, it is just a small dried fish.
Great Escape Shark
Gansbo Bay in Africa has always been famous for shark watching, and there are always some crazy tourists who spend money to let others put themselves in cages and then throw them into the sea like a pig cage, just to experience the triple soul flying experience of confinement + great white shark + deep sea at close range.
This brave game of dementia is a good deal that really makes travel agencies laugh and wake up in their dreams.
Ten years ago, scientists could see great white sharks 200 times a year in Gansbury Bay.
However, in recent years, everyone has found that there are fewer and fewer sharks here, and the business of shark watching is becoming more and more difficult to do.
Scientists have also observed sharks running away from something like plague gods, with at least 14 native great white sharks escaping in recent years, and many more sharks circling Gansbury Bay, suggesting that there is a more powerful predator in the ocean that triggers their fearful escape response.
Later, more terrifying things happened, live sharks are getting rarer and rarer, and dead sharks are washed up on the beach one by one!
Since 2017, at least 8 great white shark carcasses in Gansbur Bay have been washed ashore, and there are many killer whale tooth marks on their bodies, indicating that they were tortured for a long time before they died, and the livers and hearts of these sharks have been hollowed out, and the flesh on their bodies has not been eaten.
Just in case someone doesn't know that killer whales are the only natural enemies of great white sharks. The original sin of the great white shark is its own fat and delicious fish liver.
How picky whales are, the stinky baking ammonia smell of the great white shark's skin and flesh is not to be seen, only eat the best taste, the most nutritious, the most fat-rich liver, each great white shark liver can weigh 60 kilograms.
Netizens said:
So killer whales in their previous lives may have been the most popular lawyers who ate foie gras.
I seemed to see two red wine bottles next to the poor shark.
Scared of "forced shutdown" before death
Can not underestimate the killer whale's panda outfit, looks cute, the actual teeth are sharp and not good, there is no killer whale in this sea that does not dare to attack animals.
After killing sharks in Gansbury Bay for six years, the killer whales must have had a very cold and familiar trick.
Dr. Ingrid Visser, who has studied killer whales for nearly 20 years, said that killer whales will first use their powerful tails to generate powerful underwater undercurrents, forcing sharks to surface, and when it appears, killer whales will use their tails to use karate chops to directly stun the great white shark; Or directly from the side of the rush to knock people over, when the great white shark dizzy belly, its death hole will be exposed.
As we all know, sharks have a disadvantage, that is, "rigid and static". As long as the stomach is facing up, it will be motionless and in a static state, and only when the stomach is turned over and facing down, it will wake up.
When the killer whale attacks the great white shark, it will let the great white shark enter a motionless state, just like the forced shutdown, over time, the great white shark may suffocate to death, at this time, the killer whale can bite.
Bully killer whales and ecology
As part of the annual winter hunting season, great white sharks frequent the African coast from June to October and feed on seals, but they have been afraid to come for years now.
Without great white sharks eating seals, seals will eat too many African penguins, small pelagic fish, and the number of African penguins has decreased considerably this year.
So the decline in shark populations in Africa does have an impact on marine ecosystems.
For the great white shark population itself, because killer whales prefer to eat adult great white sharks, and great white sharks grow slowly and mature late, shark populations are more vulnerable.
Of course, killer whales are not the only perpetrators of shark sharks, and the main reason for the decline in great white sharks is human fishing, hunting and so on.
In other words, it is precisely because great white sharks have been so devastated by humans that they can no longer be under the pressure of survival from killer whales!
Survival is not easy, shark sharks sigh, bacteria here to remind everyone not to buy and eat any "shark fin" products, great white sharks need to use their fins to fight killer whales! (If you can beat it)
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Ref：
https://www.dailymail.co.uk/sciencetech/article-10965643/Pair-orcas-killed-EIGHT-Great-White-Sharks-coast-South-Africa-2017.html
Text | Tutti