The two turtles are both common Chinese tortoises, commonly known as tortoises. They are the most widely distributed and numerous turtles in my country. The whole body is a treasure, and it is regarded as the best food and medicinal supplement in "Shen Nong's Materia Medica" and "Compendium of Materia Medica". China has always regarded it as a symbol of health and longevity. In the international market, Chinese tortoises are very popular. People in Japan, the Philippines, and European and American countries regard it as a symbol of "good luck and longevity".

The body of the tortoise is oblong, with a slightly raised carapace, three longitudinal edges, and obvious ridges. The top of the head is dark olive, with smooth skin on the front and thin scales on the back. The male turtle is smaller in size, with a gray-black or black olive color on the neck, limbs and exposed skin, a long tail, and a foul smell. The color of the carapace of female turtles is lighter than that of male turtles, which is yellowish brown or dark brown. The belly carapace is brown and black, the tail is shorter, and the body has no peculiar smell.

In view of the body odor problem between male and female tortoises, some turtle lovers who plan to raise tortoises for viewing will often choose female tortoises for breeding. However, when purchasing tortoises, how to identify male and female tortoises is also a problem that troubles most tortoise lovers. Because it is generally difficult to tell the male and female of tortoises before they reach sexual maturity, but Master Lin from Lunjiao, Shunde, who has many years of experience in tortoise breeding, told us that a good way to tell the difference is that the male tortoises will have slight spots on their plastrons. Indentations are flat in female turtles, and female turtles of the same age are larger than male turtles.

1. Amphibious. Turtles breathe with their lungs and have well-developed horny nails on their body surface, which can reduce water evaporation. Sexually mature turtles lay their eggs

on land and do not need to go through a fully aquatic stage.

2. Extensive food. Turtles are omnivores. In nature, animal feeds mainly include worms, small fish, shrimps, snails, clams, clams, earthworms, animal carcasses and offal, hot pig blood, carrion, etc.; plant feeds mainly include plants. Stems and leaves, melon peels, wheat bran, etc.

3. Obvious stages. The first is the feeding stage. Food intake begins in late April, accounting for about 2-3 of the turtle's body weight; food intake is strong from June to August, accounting for about 5-6; food intake decreases in October, accounting for about 1-2. The second is the dormant stage. Turtles are cold-blooded animals, and their body temperatures change with the outside temperature. From November to April of the following year, when the temperature is below 15 degrees, the turtle dives into the mud at the bottom of the pond or lies quietly in the loose soil covered with straw to hibernate; from May to October, when the temperature is above 35 degrees, the turtle's appetite begins

Clear picture of Chinese tortoise

Reduced and entered the aestivation stage (a short lunch break). At this stage, the turtle is busy mating, breeding, feeding, accumulating nutrients, and looking for a place to overwinter.

4. Sociality. Turtles like to live in groups in burrows. Sometimes due to too many groups, the carapace is worn smooth and the skin on the limbs is worn away.