Why do people catch blue whales, and why do killer whales attack blue whales?

Why don't people stop hunting blue whales? In the guise of scientific research, why not catch?

Blue whales do not bite, they feed on plankton and eat krill as their staple food. A blue whale consumes 2-5 tons of food per day. Swimming speeds range from 2 to 6 km h when feeding, 5 to 33 km h during migration, and up to 20 to 48 km h when being chased.

Generally, 10-20 small dives are followed by a deep dive, with shallow dives between 12-20 seconds, and deep dives can last 10-30 minutes. The spray column is narrow and straight, 6-12m high.

Krill is the main food of blue whales, and the plankton they eat varies from one area to another. In the North Atlantic, northern krill are the main food for blue whales. And in Antarctica, Antarctic krill is the main food of blue whales.

Blue whales don't bite because, first of all, blue whales are baleen whales, have no teeth, and will only feed on simple plankton. Sperm whales, another family of toothed whales, including killer whales, are not attacking humans. Because whales are very intelligent marine mammals, they know that humans are not easy to mess with, unlike sharks, which are fish that rely on instinct to hunt.

As long as you smell blood, you can't control your nature like a madman. So not only blue whales, but also other whales such as killer whales, sperm whales, and dolphins do not attack humans. Only the long-suppressed killer whales in the aquarium have ever attacked humans.

But that doesn't mean anything, because if you confine people for a long time, you can go crazy. Therefore, blue whales and other whales and dolphins do not actively attack humans in the wild. On the premise of counterattacking and protecting the young whales is not excluded.

The book says that blue whales have no teeth and feed on plankton and do not bite.

<> "Blue whales are the largest animals in the ocean, and killer whales are the most ferocious sea creatures in the ocean, using an analogy of animals on land, elephants (the largest animals on land) and lions (one of the most ferocious carnivores on land).

In reality, the relationship between blue whales and killer whales is very similar to that of elephants and lions, they rarely clash, and the reason for the number of skins is also very simple, and the difference in size is too large. However, there are exceptions to everything, and on land, lions also attack elephants during the season when food is scarce, and the same killer whales attack blue whales.

So, under what circumstances do killer whales attack blue whales? In the face of killer whale bites, how do blue whales respond? Let's talk about these two issues together.

Killer whales and blue whales are members of the cetacean order, the difference is that killer whales are toothed whales, and blue whales are baleen whales, toothed whales are whales with sharp teeth, they belong to predators in the ocean, especially killer whales, in the ocean, it is even the great white shark has to retreat from the existence, plus killer whales have a habit of living in groups, so, from the ecological niche point of view, their ecological niche in the ocean is very close to the lion on land.

The blue whale is a baleen whale, baleen whale is a toothless whale, because they have no teeth, so they can only feed on small creatures in the ocean, through a large mouth of seawater, and then filter out the seawater through the whisker plate, leaving small fish and shrimp can be swallowed. In the ocean, small fish, shrimp and plankton are as common as grasses on land, so the ecological niche of blue whales is close to that of elephants on land.

Killer whale groups usually consist of at least 5 or more members, with an adult killer whale having an average body length of 6 meters and a weight of about 5 tons, while the blue whale, as the largest creature on Earth, has an average adult body length of about 27 meters and an average weight of about 160 tons. In terms of body size, the body length of an adult blue whale is nearly 6 times that of a killer whale and its weight is more than 30 times that of a killer whale.

Judging by the size data, killer whales should have no idea about a behemoth like a blue whale. However, from the 40s of the 20th century to the present, scientists alone have observed as many as 16 incidents of killer whales attacking blue whales, of which 6 were successfully killed, 2 are unknown, and 8 blue whales have successfully escaped.

As the animals at the top of the food chain in the ocean, killer whales will attack almost all large sea creatures, but for adult blue whales, killer whales do not have much idea, but have a certain hunting ability for juvenile blue whales with little experience and poor stamina.

Although the relationship between killer whales and blue whales is somewhat similar to that of lions and elephants, the difference between them is that elephants do have the ability to kill killer whales, while blue whales mainly rely on endurance to escape. Of course, from what has been recorded since the 40s of the 19th century, it is not the norm for killer whales to hunt blue whales of any age.