Orcas are not whales, they are close relatives of dolphins. Dolphins and killer whales are not overtly aggressive towards humans and even behave in a similar manner.
Some people say it's because humans don't follow the killer whales' diet, but if pigs, sheep and other invisible mammals are released into the sea, the killer whales will hunt them without mistake.
Currently, this can be reasonably explained by the human sea ape theory. Sea monkeys, the ancestors of land-based humans, have a long history of mutually beneficial cooperative hunting with dolphins and other creatures. each other), so this type of sea creature has an attitude of closeness to people deeply engraved in their genes (in the same way that wild cats who are cute towards people are more likely to survive).
The passenger killer whales of the ANorth Atlantic and Antarctic AB killer whales both prey on marine mammals and other whales. If humans and these killer whales coexist in the same environment for a long time, I think they will definitely be included. their list.
Detailed information:
Among them, Atlantic type 2 and Antarctic type A killer whales feed on cetaceans and even blue whales, while pelagic killer whales feed on sharks and are kings undisputed seas. It can reach 8 to 10 meters in length and weighs around 9 tonnes. The head is slightly rounded and has a discreet beak. The dorsal fin is tall and straight, with a curved length of 1 meter. The two wing bones are far apartthe other.
The temporal fossa is large. The mandible is relatively short. There are 10 to 12 conical teeth in each dentition of the upper and lower jaws. The mouth is long and thin, the teeth are sharp, the temperament is fierce, and it is good at attacking prey.
Orcas can live up to 80 to 90 years in the wild, but the average lifespan in human captivity is only 20 to 30 years.
The killer whale is an extremely intelligent animal. He is no less emotional than primates. It has a powerful linguistic system and has very few dialects among animals. It even uses its tones to taunt similar species. Killer whales that have failed to hunt successfully, are very social, and have been kept away from their parents or children for a long period of time, will suffer from mental illnesses in addition to physical illnesses, such as depression.
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