orca is very large in shape, spindle-shaped, with a smooth surface, and a thick layer of fat under the skin to preserve the body's calories. The body length is about 600-1000 cm and the body weight is 5000-10000 kg. The head is round, without a protruding sniffle, the nostril is on the right side of the head, and there are free-switched flap. When it floats on the water surface, it opens the flap and breathes, sprays out a foamy aerosol. When it encounters the cold air on the sea, it turns into a water column.
Killer whales like to live in groups. They have small groups of 2-3 and large groups of 40-50. They always stay quietly on the surface of the water for 2-3 hours a day. Because the lungs are filled with enough air, they can float safely on the sea surface, revealing their huge dorsal fins. Pectoral fins between group members often remain in contact, appearing intimate and united. If a member of the group is injured or loses consciousness in an accident, other members will come to help, using their bodies or heads to support them so that they can continue to float on the sea surface, even when they are sleeping, which is to take care of each other and maintain a certain degree of sanitation. They travel and eat together, use populations as social organizations, rest in the vast family, and grow up by surviving each other.
If you want to communicate with humans far away from you (a few hundred meters away), you basically have to rely on roaring, and killer whales are no exception, but killer whales use more frequent dolphin sounds.
study found that killer whales in different regions also have different "accents" and even "languages". For example, a killer whales family living in Iceland can make 24 different sounds for communication, while a killer whales family in Norway can make 23 other completely different sounds.
Moreover, the orca "dolphin sound" of the orca whale is still very fast, and the speed of spreading in sea water at 25℃ is 1531m/s, which is 4.5 times the speed of sound propagation in air at 25℃.
When the killer whales in a family are very close to each other, they will make a whistle-like sound, and when they are far away, the whistle becomes much less. This may be the "whisper" between the killer whales!
Nowadays, many aquariums have also introduced killer whales. Killer whales are friendly to humans, but honest people also have one day when they are forced to force them. There have been cases of killer whales hurting people. Animals are good partners of mankind. We live in symbiosis and advance together. We call on everyone to protect wild animals and build a beautiful home.
Finally, there are several photos of killer whale jumping with super high IQ to experience the courage of the killer whale together.
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