Dragonfly is a general term for insects of the order Odonata. It is an ancient insect that appeared as early as 0.3 billion years ago in the Carboniferous. The body is slender, with two pairs of transparent wings, wings covered with mesh veins, flying ability is extremely strong. The head has a pair of compound eyes, which are large and prominent, with a wide field of vision, and can keenly capture flying insects. Mainly living near the waters, the larvae live in the water and feed on small organisms in the water. Adulthood in the air to prey on mosquitoes, flies and other small insects, is the famous "air hunter". It flies extremely fast and can make sharp turns and hover. Is an important beneficial insect.

Parthenoptera is a large wingless species that lives in katydids in Eurasia and belongs to the family Orthoptera. The body is slender, with a body length of about 55 to 75mm, and is emerald green or iron cyan. Known for its strong predatory ability, it is specialized in the front and middle feet with spikes and is used to catch prey. A distinctive feature is its parthenogenetic ability, in which a female individual produces offspring without the need for males. Makes parthenogenetic males of the hydatids extremely rare in the wild. It mainly inhabits open grasslands and bushes and feeds on other insects. Mainly distributed in parts of Xinjiang. Due to its unique reproductive mode and large body size, it is classified as a near-endangered species.

Also known as the Arabian Hound or Persian Hound, it is an ancient and elegant breed of dog that originated in the Middle East and has a history of over 4000 years. Known for its fast speed, lightweight physique, and noble temperament, it is one of the fastest breeds of dogs. Long and muscular, with short and smooth fur of various colors, long and drooping ears, long and curly tail, and a light and elegant gait. Intelligent and independent personality, very loyal and friendly to family members. Usually remain vigilant towards strangers, but do not exhibit aggression. It requires appropriate training and socialization, making it a very charismatic and versatile breed of dog.

It is a precious freshwater fish that lives in the Danube River basin and its tributaries. Belonging to the Salmonidae family, it is known for its enormous size and unique ecological habits. The body is slender, with a silver gray color and dark markings that help camouflage in rocks and sediments in rivers. The head is large and has sharp teeth, adapted to the predatory habits of fish and other aquatic animals as the main food. It is an important member of the Danube River Basin ecosystem and plays a crucial role in maintaining ecological balance. Currently listed as an endangered species. It is a natural heritage of the Danube River Basin and a focus of attention for fishing enthusiasts and nature conservationists.

It is a marine fish widely distributed in the Indo Western Pacific region, commonly found along the coast of China. The body is slender, with a deep blue black color and silver luster on the sides. The mouth is small and pointed, and the two jaws have fine teeth. They usually live in rocky areas or near coral reefs near the coast, feeding on small fish, crustaceans, etc. Black snapper has delicious meat and rich nutrients, making it one of the favorite edible fish species among people. It also has certain medicinal value, and its meat and organs can be used to treat various diseases. The breeding season usually occurs in spring, when they gather in the nearshore reef areas to lay eggs. Due to overfishing, the population of black snapper has decreased and requires strengthened protection.