Also known as black haired pig, it is a pig breed with a long history of breeding. Usually has black skin and hair, a robust physique, strong adaptability, and can grow in various climatic conditions. Black pigs are famous for their delicious meat and delicate taste, rich in various nutrients such as protein, amino acids, and essential fatty acids, which are very beneficial to human health. In addition, black pork has a relatively high fat content, but mostly unsaturated fatty acids, which can help reduce the risk of cardiovascular disease. There are various breeding methods, which can be grown in traditional free range environments or scaled up in modern farms.

It is a small reptile belonging to the gecko family of the lizard order. Known for its unique ability to walk freely on vertical walls and even hang upside down from the ceiling. There are thousands of tiny hairs on the soles of the feet, which can generate van der Waals forces with the surface, allowing them to adhere to smooth surfaces. Usually active at night, feeding on insects such as mosquitoes and flies. Highly sensitive to environmental changes, it is often used as a symbol of ecological health. Their regenerative ability is also very strong. If their tail is caught, they can cut off their tail on their own to escape predators, and then their tail can grow back.

It is a large and powerful mammal belonging to the family Rhinoceros in the order Rhinoceros. Known for its short and robust limbs, thick skin, and unique horns. Mainly distributed in tropical regions of Africa and Asia, it is one of the largest surviving land mammals. Rhinoceros horns are composed of keratin and have high medicinal value, but this also makes them a major target for illegal hunting. Poor eyesight, but very keen sense of smell and hearing. Usually mainly herbivorous, occasionally also eating some fruits and leaves. Due to habitat loss and poaching, the number of rhinoceroses is decreasing, and many species have been listed as endangered.

It is a type of mammal that lives around the world and belongs to the deer family. They are known for their majestic physique, strong limbs, and spectacular antlers unique to males. They usually live in forests, grasslands, and swamps, with plants as their staple food, including grass, leaves, fruits, and bark. Antlers shed and regrow every year, which is a significant sign of their sexual maturity. Bucks compete for mates during the breeding season through the collision of antlers, which is part of their survival competition. In addition, male deer are also important species in many ecosystems, playing a crucial role in maintaining biodiversity and ecological balance.

It is the largest surviving land mammal on Earth, known for its massive size, long nose, and large ears. Belonging to the elephant family, it is mainly divided into two subspecies: African elephants and Asian elephants. African elephants have larger body sizes and larger ears, while Asian elephants have smaller body sizes and circular ears. The nose is very flexible and can be used to grasp objects, breathe, and make sounds. They are social animals that live in families and are led by an older female elephant. Elephants feed on plants and require a large amount of food every day to maintain their large bodies. Plays an important role in ecosystems and is a significant symbol in many cultures.

The white rhinoceros is a mammal belonging to the family Rhinocerotidae in the order Neodactyla. The body is round and robust, the skin is thick and smooth, and the surface of the body is approximately gray; The head has special features, but the incisors and canines have degenerated. The developed 7 pairs of cheek teeth have a very thick layer of limestone; There are two horns, one large and one small, one in front and one behind. The horns are not made of bone, but are derivatives of epithelial tissue, formed by the accumulation of keratin fibers. Distributed in southern and northeastern Africa, mainly active in the morning and evening, and rolling or resting in muddy water at other times; When the weather is cool, they lie under the shade of trees and take a nap, living alone or forming small groups. They are distributed in southern and northeastern Africa and feed on grass.

Hippidion, also known as South American horse, is a member of the horse family in the order of odd hooves. In the mid-19th century, some horse fossils were discovered on the grasslands of South America and handed over to British paleontologist Richard Owen. After restoration, Owen found that they were similar to modern horses, but smaller in size and were ponies, commonly translated as South American horses in China. The body size is not as big as a donkey, with a shoulder height of less than 1.4 meters and a weight of over 200 kilograms. The body shape of a South American horse is similar to that of a pony, with a short and sturdy body, short limbs, and a large head, making it look uncoordinated. Like modern horses, it is suitable for gnawing on hard grass rich in silicon.

Elephantidae is a mammal belonging to the family Elephantidae in the order Longnose, consisting of two genera, and is the largest terrestrial animal in the world. Its pillar like limbs and wide feet can stably support its massive body. A huge head with fan-shaped large ears and a long and elastic nose. Elephant ears have abundant blood vessels that can effectively dissipate heat. The elephant trunk, which combines the nose and upper lip, is coordinated by over 15000 muscles. Distributed in sub Saharan Africa and southeastern Asia, it inhabits various living environments, especially forests, grasslands, and river valleys. Living in groups, male beasts occasionally live alone. Eating plants, with a large appetite.

The terror pig, also known as the terror pig, has a slightly larger body size than the giant pig and the complete toothed pig, and is an extremely large species in the giant pig family. Between 5 and 23 million years ago, the terror pig was the largest member of the Auchenipteridae family in history. It had huge tusks and jawbones, was an omnivorous species, and had a body size similar to that of a rhinoceros. It was more ferocious than modern wild boars and was named after its previous name, Dinohyus, which means "terror pig" in Greek. Their living habits are similar to those of ancient giant pigs and porcupines. The staple food of the terror pig is plants, but it also often eats decay or attacks small animals, as well as snatching food from small carnivores.

Cynodont, the ancestor of mammals. More like mammals than reptiles. Some live in pairs in caves. Ancient creatures, only two large canine molars have been found in the petrified forest of Arizona. Most canines are carnivorous animals, with very few exceeding 90 centimeters in length. They have many similarities with mammals. Both canines and mammals can breathe while chewing food. They all have several different types of teeth. Like mammals, canines have whiskers and perhaps body hair. Dogtooth beasts have their limbs located beneath their bodies and can run quickly.

The scientific name of the Egyptian heavy footed beast was taken in honor of the queen of Ptolemy II, Arsinoe II, as the initial fossils were found near the ruins of her palace. The bones found here are the only complete, and the most famous species is the Qi's heavy footed beast. It is about 4.5 meters long, 2.5 meters high, and weighs about 4 tons. The most prominent feature of the Egyptian heavy footed beast is a pair of giant horns protruding from its nose. It has 44 strong teeth in its mouth, which can easily chew rough and hard plants. The Egyptian heavy footed beast evades the hunting of most predatory animals with its massive body. The era of life was approximately 37 to 23 million years ago.