The ferocious killer whale is a mammal. In addition to humans, killer whales are the most intelligent animals in the world, and their IQ exceeds that of high-IQ animals such as orangutans, elephants, crows, and parrots.

It is also the well-deserved king of the sea, the top professional killer in the marine food chain, without any natural enemies, feeding on sharks, and even attacking other cetaceans. Found in almost all oceanic regions, from equatorial to polar waters. Water temperature or depth does not limit its range. The distribution extends to many enclosed or semi-enclosed seas, such as the Mediterranean Sea, the Sea of ​​Okhotsk, the Gulf of California, the Gulf of Mexico, the Red Sea and the Persian Gulf.

The head of an adult killer whale is 8-10m long and 8-10m in weight, making it the largest of the dolphin family. The body is spindle-shaped, with a smooth surface and a thick layer of fat under the skin to store body heat. The head is slightly rounded with an inconspicuous beak. The dorsal fin is tall and erect, curved up to 1 m. The body is black and white, the wings are far apart, and the mandible is relatively short. There are 10-12 conical teeth in each row of upper and lower jaws. It has a slender mouth, sharp teeth, and a ferocious temperament. It is a carnivore and is good at attacking prey. It is the natural enemy of penguins, seals and other animals.

Killer whales like to live in groups, there are small groups of 2-3, and large groups of 40-50. There are always 2-3 hours a day to stay quietly on the surface of the water, because the lungs are full of enough air, So it can float safely on the sea, exposing its huge dorsal fin. The pectoral fins between members of the group are constantly in contact, showing affection and unity.

If a member of the group is injured or loses consciousness in an accident, other members will come to help, using the body or head to support the top, so that it can continue to float on the sea, even when sleeping, it is also tied into a pile. This is to look after each other and maintain a certain level of sobriety. They travel and eat together, use the population as a social organization, rest in large families, and rely on each other to survive and grow.