Lizards, commonly known as “four-legged snakes”, also known as “snake mothers”, are distributed throughout the world. It belongs to cold-blooded reptiles and has a wide variety. There are about 3,000 species distributed on the earth, and there are more than 150 species known in China. Mostly distributed in the tropics and subtropics, the living environment is diverse, mainly terrestrial, arboreal, semi-aquatic and earthy burrows. Most feed on insects, and there are also a few species that also eat plants. Lizards are egg-born and a few are born. Lizards are closely related to snakes. There are many similarities between them. The whole body is covered with epidermal-derived horny scales. The clogging anal holes are all transverse. The males have a pair of joints, all of which are oviparous (or some The type of egg birth), the square bone can be active.
Most of the species are carnivorous and feed on insects, crickets, snails, and even mice. But there are also cactus or seaweed as the main food, or omnivorous.
Most lizards live in the daytime, and the geckos move between the thin and the dawn and can make a loud sound (and most lizards can’t make a sound). Lizards prey on the way to wait or search. Many lizards can self-cut the tail, and the broken tail can be quickly twisted to distract the predator, and the lizard can escape. Many lizards have domain behavior (including field performances) or courtship performances. Many species have a hole that may be used to secrete chemicals to attract the opposite sex. Lizards have little economic significance for people. Some iguanas are edible and some are tanned. Gecko inhabits the living room and can catch pests, but may spread Salmonella. Lizards are important research materials in biology and are often used as animals for recreation.
Lizards are temperature-changing animals. Lizards living in temperate and cold zones enter a dormant state in winter, showing changes in seasonal activities. Lizards living in the tropics can enjoy activities all year round due to the warm climate. However, in particularly hot and dry places, there is also a phenomenon of summer sleep to survive the harsh environment of high-temperature drying and lack of food. It can be divided into three types: daylight activity, night activity, and morning faint activity. The formation of different types of activities depends mainly on the activity habits of food objects and other factors.
Individual lizards have a limited range of activities. Arboreal lizards often only move between several trees. According to several ground-lit lizards, such as the multi-line southern lizard, the range of activity is about 1,000 square meters. Some species also show differences in age. The newly hatched pupa is active near the waters of the hatchery, and it is transferred to the distant forests after adulthood.