Under what circumstances do snails grow? What season do snails usually appear

The outer and middle layers of the snail shell are secreted by the edge of the mantle, which can gradually increase with the growth of animals, but do not thicken. The inner layer is secreted by the entire mantle and can increase in thickness as the individual grows (similar to the nacre of a shell).

The growth of the cuticle and chitinium of the snail shell is not continuous, and the growth rate of the snail shell is different in different periods due to the influence of food, temperature and other factors, so the growth line is formed on the surface of the shell, indicating the speed of birth growth.

In fact, snails belong to mollusks, and the formation principle of mollusk shells is roughly the same, both are formed by the condensation of secretions.

That's enough, I hope it helps.

Snails generally come out from dusk to dawn the next day, and prefer to be in warm, moist places.

Snails refer to all terrestrial species of the class Gastropoda. In general, Western languages do not distinguish between aquatic snails and terrestrial snails, and in Chinese, snails only refer to terrestrial species, while snails in a broad sense also include giant shield slugs. The snail is an animal that includes many different families and genera.

Feeds on plants and lays eggs in the soil or on trees. It is more common on tropical islands, but some also live in cold regions. Arboreal species are bright in color, while terrestrial species are usually several close colors, generally striped.

Form factor overview. The whole body of the snail includes eyes, mouth, feet, shell, antennae and other parts, and the spiral shell on the back of the body, its shape, color and size are different, and their shells are pagoda-shaped, top-shaped, conical, spherical, pipe-shaped, and so on.

At present, the white jade snail, the cover snail, the scattered snail, the bright snail, the brown cloud agate snail, etc., all have their own unique appearance. The eyes of the snail grow on the back pair of antennae on the head.

They come out from dusk to dawn the next day, and they like to be in warm, moist places.

Snails like to live in a dark and damp, loose and humic environment, nocturnal, most afraid of direct sunlight, sensitive to the environment, most suitable for the environment: temperature 16 30 (23 30 times, the fastest growth and development); Air humidity 60% 90%; The humidity of the feeding soil is about 40%; The pH is 5 7. When the temperature is below 15 and above 33, it is dormant, and when it is lower than 5 or higher than 40, it may freeze to death or heat death.

Snails like to burrow into loose humus soil to inhabit, lay eggs, regulate the humidity in their bodies and absorb some nutrients, which can last up to 12 hours. Omnivorous and partial feeding coexist. Likes humidity and is afraid of flooding.

It comes out around the mud piece after the rain.

It may be in a place with sunlight and water.

In the evening, alas, they like to come out at night.

Snails will hide deep in the soil in winter and autumn, and prefer to live in a dark and damp, loose and humus environment, day and night, most afraid of direct sunlight, suitable for snails to survive at a temperature of 16 30.

Snails are terrestrial.

Shellfish mollusks, snails have lived on the earth since ancient times. There are many kinds of snails, about 25,000 species, all over the world, and there are thousands of species in China alone. There are about 11 species of edible value in China, such as brown cloud agate snail.

Tall ringmouth snail, Hainan snail, wrinkled snail, Jiangxi snail, Ma Shi snail, white jade snail. Wait.

Under the bricks, in the grass, under the dark dirt.

The snail zoom turned out to be like this.