Killer whale, also known as orca, killer whale, is a large toothed whale, 8-10 meters long, weighing about 9 tons, the head is slightly rounded, with an inconspicuous beak; the dorsal fin is high and upright, curved up to 1 meter; the body is black and white. Its teeth are sharp, its temperament is fierce, it is a carnivore, good at hunting, and is a natural enemy of penguins, seals and other animals. Sometimes they also attack other cetaceans, even great white sharks, which can be called "sea overlords".
The Chinese white dolphin, belonging to the cetacean family, is a close relative of bottlenose dolphins and killer whales. Most people think that the Chinese white dolphin is a fish, but in fact they belong to mammals and whales and dolphins, and are as constant as humans, breathing with their lungs, conceiving and giving birth to young children with milk. Although named "White Dolphin", the newborn Chinese White Dolphin is dark gray, gray when young, and pink when adulthood.
Baiji dolphin ("鱀" pronounced "jì", often written by the media as "white-tipped dolphin" or "white dolphin" in the media), is a unique small freshwater whale in China, only produced in the middle and lower reaches of the Yangtze River, known as the "Yangtze River Goddess", "Water Giant Panda" and "Water Chinese Treasure".
The small snapper whale, also known as the minke whale and the spiky whale, is a type of small baleen whale. The body is short and thick, the head is small, and the front resembles an isosceles triangle. The dorsal and body sides are dark gray or black grey with a light blue color, the ventral surface is white, and the ventral surface of the caudal fin is also white, feeding mainly on shrimp and small fish. Adult whales are 9 meters long and can weigh up to 13.5 tons. The small snapper whale is mainly distributed in the Pacific Ocean and the Atlantic Ocean, and is mainly distributed in the Bohai Sea, yellow sea, East China Sea, South China Sea and other waters in China, and belongs to the national second-level protected animals.
Melon-headed whale, named after its pointed melon-shaped head. It is also known as the melon-headed whale, the toothed black whale, the small killer whale and the Iletra dolphin. It is the only animal in the genus Guadalidae in the dolphin family. Melon whales are found in the deep waters of tropical and subtropical offshore waters around the world, and live longer than 30 years. The body color is dark gray, the ventral surface is slightly pale, the eye area is dark, there are white spots on the throat, there are pale spots in front of the umbilicus, and there are anchor-shaped pale spots between the two flippers. Adult whales are 2.75 meters long and weigh 275 kilograms at a maximum weight.
Short-limbed pilot whale, also known as the big-snouted pilot whale, the giant whale of the big snout, is characterized by a rounded forehead, a bulging upper jaw front, protruding forward, and no obvious snout. The body is black or blackish brown with off-white spots behind the dorsal fin. Short-limbed pilot whales are found in the south-central Yellow Sea, the East China Sea, and the South China Sea, but in small numbers. Adult whales are generally 3.5-6.5 meters long and weigh about 1-4 tons, with males larger than females; juvenile whales are about 1.4-1.9 meters long and weigh about 60 kg.
Pygmy killer whales, also known as small killer whales, black cows, small killer whales, small orcasses, slender black whales, slender pilot whales, is an animal in the dolphin family, and is related to killer whales, but pygmy killer whales are independent species, not killer whale cubs. It has a white chin, which is about 80 cm long when it is born, and can reach about 2.6 meters when it grows into a dolphin, and the male has a thicker physique and weighs about 200 kg.
Pseudo-killer whales, also known as black catfish, pseudo-killer whales, pseudo-pilot whales, pseudo-orcass, belong to the order Cetaceans, and are the only species of pseudo-killer whales in the dolphin family. Pseudo-killer whales are similar in appearance to killer whales, smaller than killer whales, and weigh 1-2.2 tons. The body color of the whole body is black. The head is round, the mouth is large, and the mouth is cut in the direction of the eyes, making its face very frightening. There is no beak, the upper jaw is slightly protruding than the lower jaw, and it prefers to gather in groups. It is found in temperate and tropical waters of the world's major oceans except the Arctic Ocean.
Sword-nosed whales, which inhabit deep-sea areas, usually act alone or in small groups of 3-5 heads. Adult males can reach up to 7.5 meters, and females can reach up to 7 meters and weigh about 3000 kg. It is a marine animal under national second-level protection, mainly feeding on squid and benthic fish.
Ganges pufferfish, weighing 51-90 kg, body length 200-400 cm. Females are slightly larger than males. The skullbone type is highly asymmetrical, inclined to the left, the forehead is steep, and the jawbone is longitudinally raised. The dorsal fin is positioned with a triangular bulge, sharp at the end and soft caudal fin. There are large differences in body color between males and females. Body colours range from light blue to grey to dark brown. The eyes are very small, have no lens, and are almost equivalent to blindness, but can feel the intensity and orientation of the light, using echo to locate navigation and forage.