Polypodia, that is, iguanas of the order Leo, is divided into Australian subspecies and China subspecies, but their habits and feeding habits are still very similar. Chinese scientific name: iguanas: Squamous Leo Order Distribution: China and Australia scientific name: Physignathus cocincinus (also known as horsehair snake), English name: Water dragon Species Classification: Vertebrate phylum → Reptilia → Squamous Leo Order (Lizard Order) → Flying lizard (Iguana). The biggest difference between the two is that the temperature range is very different. Australian waterspout can withstand the low temperature below degrees, but it can't endure the high temperature above 28 degrees for a long time, so its personality is relatively stable, while China waterspout is very sensitive to the low temperature below 2 degrees, but it has a good tolerance for the high temperature, and its personality is relatively timid. And Australian hoses are mainly gray, while China hoses are mainly green. The size and appearance of the newly hatched waterspout is about 1 inch (2.54cm) long, with a total length of 13-15cm. Its back is brown-green, its abdomen is light green, its side has white or brown stripes, its tail is brown and green, and it has big eyes and a short kiss. The total length of an adult male can reach 92cm and that of an adult female can reach 61cm. The length of the tail accounts for 7%-75% of the total length. The tail function of the hose includes: it is a balancer when climbing, and it is a whip when attacking and defending. The body colors of adult (China) hoses range from dark green to bright light green. The lower part of the body is generally lighter in color. Vertical stripes on the side of the body. The color of stripes is usually light green or mint green. Laryngeal sac can be varied in color, including light green, orange, peach and pink. The head is triangular, and the adult male faucet will be wider. Tongues are similar to those of human beings, except that there is a small slit at the top of the tongue, and there is mucus on the tongue, so that they can catch prey. Teeth are small and sharp. If a person is bitten, it will cause bleeding. There is a black stripe from the corner of the eye to the ear. There is a small dot in the center of the head, called the top eye (or eye). The role of the top eye is to feel the light source and heat source, so that the hose can easily find the best place to sunbathe. Hosea has a well-developed "dorsal fin", on which males have longer spines than females. Hosea has developed limbs, and its forelimbs are a little smaller than its hind limbs. There are five toes on each front leg, and there are claws on the toes, which is convenient for the hoses to climb. The hind legs are muscular and strong, and play a role in climbing, swimming and jumping. Hose can change color, but it can't change many colors like chameleon. 3. Habitat China Polypodia is produced in the southeast of the Asian continent (Thailand, southern China, Viet Nam, Khmer); Australian hoses are distributed in eastern Australia, so they are also called Eastern Water Dragons. Polypodia is a large-scale arboreal lizard with daytime activities, which mainly lives on trees or shrubs, but occasionally some polypodia are found burrowing in the sand. Hosea is also considered a semi-aquatic lizard. Their long and big tails are good swimming tools. 4. Life span The life span of a waterspout is about 1-2 years (no relevant explanation found).