Blue whale is a marine mammal belonging to the family of baleen whales and the genus of baleen whales. There are four subspecies in total. The blue whale is considered the largest animal known to have lived on Earth, measuring up to 33 meters in length and weighing 181 tons. The body of a blue whale is slender and long, with a bluish gray back, but sometimes it appears lighter in water. The fin limbs of blue whales are 3-4 meters long. Above is gray with narrow white edges. Below is completely white. The head and tail fins are generally gray. But the back and sometimes the fins are usually mottled.

Sperm whales are marine mammals belonging to the order Cetiformes and family Spermatidae. With a body length of up to 18 meters and a weight of over 50 tons, it is the largest toothed whale, with its head occupying one-third of its body. The head is huge, the lower jaw is small, and only the lower jaw has teeth. No dorsal fin; Highly capable of diving, it is the mammal with the deepest and longest diving time. Like a fish in size, it breathes through its lungs. Short neck, the head seems to be connected to the torso; Cervical spine healing; The nostrils are spray holes located at the snout end, the forelimbs become fins, the forearms degenerate, the palms become longer, and the number of toes increases, but the toes and claws cannot be seen from the outside; Hind limb degeneration; The tail is like a fish, with horizontal tail fins, and it swings by the tail when swimming.

Orcas are mammals belonging to the family of dolphins in the order of Whale Artiodactyla. Adult weight 6600 kilograms, average body length 6-9 meters; The head is slightly round, with an indistinct beak or no beak; The body is black and white in color; There are oval shaped white eye spots above and behind the eyes; There are 10-12 conical teeth on each side of the upper and lower jaws; Males are longer than females and weigh about twice as much as adult females. The killer whale has a large head, black and white colors, and looks like a tiger, hence its name.

The king penguin is a bird species belonging to the family Penguin in the order Penguin, also known as the king penguin. Height of about 95 centimeters; Long and slender mouth; The sternum has developed dragon bone protrusions; The forelimbs develop into fins; Having webbed feet; Feathers are in the form of scales and densely arranged; The feathers on the tail are relatively short. The head, beak, neck and other parts are orange in color. Similar in appearance to emperor penguins, but slightly slimmer in stature.

The polar bear is a species of bear in the family Ursidae, and is the world's largest terrestrial carnivore, also known as the white bear. The body is large and robust, with a shoulder height of up to 1.6 meters. Adult males weigh between 300-800 kilograms and can grow up to 2.5 meters in length. Females are relatively small, weighing 150-300 kilograms and measuring 1.8-2 meters in length. Similar to brown bears, but without shoulder humps. The head is relatively smaller than other bears, with small and round ears and a slender neck. The skin is black, and due to transparent hair, it usually appears white in appearance. There are also yellow and other colors, and the body is huge and fierce.

The polar bear is a species of bear in the family Ursidae, and is the world's largest terrestrial carnivore, also known as the white bear. The body is large and robust, with a shoulder height of up to 1.6 meters. Adult males weigh between 300-800 kilograms and can grow up to 2.5 meters in length. Females are relatively small, weighing 150-300 kilograms and measuring 1.8-2 meters in length. Similar to brown bears, but without shoulder humps. The head is relatively smaller than other bears, with small and round ears and a slender neck. The skin is black, and due to transparent hair, it usually appears white in appearance. There are also yellow and other colors, and the body is huge and fierce.

Deer is the only deer species in the family Deer and genus Deer. Because its head and face are long and narrow like a horse, its horns are slightly different from other deer, its hooves are wide like cows, and its tail is slender like a donkey, it is also known as the Four Elephant. Its horn shape is unique, opposite to the horns of other deer. The front branch splits into smaller branches, while the back branch hardly splits. The head has a long and narrow snout, the exposed part of the nose is wide, the eyes are small, and the infraorbital glands are very prominent. The limbs are thick and the main hooves are broad and fleshy, with well-developed hanging hooves and a loud knocking sound when walking. Deer prefer swamp and wetland habitats, feeding on green grass and aquatic plants. Good at socializing, good at swimming, and enjoys eating tender grass and aquatic plants.

Seals are a collective term for carnivorous animals in the family of seals. The body is obese and round, with a spindle shaped body and limbs that have become fin shaped; Head nearly circular; Big and round eyes; No external ear canal; Kiss short and wide; The upper lip tendrils are long, thick, and hard, resembling beads. Female seals can live up to 30 years, while male seals have a lifespan of less than 20 years. Seals are found in almost all sea areas around the world, mainly in the Arctic Ocean, Atlantic Ocean, and Pacific Ocean. Distributed in the Bohai Bay, along the coast of China, including Luda, Qinhuangdao, Yantai, and other areas.

Walrus is a carnivorous mammal in the family Walrus, which has only one species and no subspecies. Walrus has a cylindrical body, thick and obese. Flat head, blunt snout. The forelimbs are relatively long, and the fingers are spread apart; The hind limbs can bend forward, allowing for crawling on land and swinging left and right while swimming. The tail is very short, hidden in the skin behind the buttocks. Male white upper canine teeth grow continuously throughout their lives, with their roots attached to the upper jaw and a very strong connection to the skull. The tips extend out of the mouth to form elephant like fangs, hence the name.

Lobster is a general term for animals in the family Lobidae, also known as dragon head shrimp, shrimp queen, sea shrimp, or shrimp king. The shell is firm and thick, often with thorns on the surface; The body is roughly cylindrical in shape, with a slightly flat back and abdomen; The head and chest armor are well-developed, thick and spiny, with a pair of powerful ocular spines in the center of the anterior edge, but without frontal horns; The abdomen is short and thick, curled towards the ventral surface at the back, and the tail fan is wide and short. Named after its appearance resembling a mythical dragon in daily life.

Brachiosaurus is a general term for the "Brachiosaurus" dinosaurs of the Jurassic period. The body length is 25 meters, the height is 15 meters, the weight is 30 tons, the tail is thick and short, the head is very small, the neck is very long, and the shape is similar to that of a giraffe. There are large claws on the inner side of the foreleg. The jaw is well developed, covered with 52 teeth up and down, and the edges of the teeth are sharp. The limbs are thick and strong. The nostrils are on top of the head. It is named for its long forelimbs.