How did the snail come about, how did the snail come about

Your question could be written in a lengthy essay.

To cut a long story short, gastropods are one of the oldest animal phyla, first appearing in the Early Cambrian period, a bit like lanceo-covered caterpillars, shallow benthic dwellers. By the Middle and Late Cambrian periods, this group had undergone a very large evolutionary development. During the Ordovician, different species of gastropods appeared in multiple outbreaks, greatly enriching the species of gastropods, and later evolved into a monoshell, with the passage of time, those gastropod monovalves active in the coastal zone gradually adapted to land life, slowly evolved lung snails, and then through multi-point outbreaks, reproductive isolation, one of them formed the primitive pedia, again through reproductive isolation, snails appeared.

Gastropoda is one of the oldest animal phyla, first appeared in the Early Cambrian period, a bit like a caterpillar covered in lanceos, shallow benthic dwelling. By the Middle and Late Cambrian periods, this group had undergone a very large evolutionary development. During the Ordovician, different species of gastropods appeared in multiple outbreaks, greatly enriching the species of gastropods, and later evolved into a monoshell, with the passage of time, those gastropod monovalves active in the coastal zone gradually adapted to land life, slowly evolved lung snails, and then through multi-point outbreaks, reproductive isolation, one of them formed the primitive pedia, again through reproductive isolation, snails appeared. Thank you.

The snail is a lung snail, which should be an ancient primitive lung snail that gradually evolved due to reproductive isolation after diffusion.

Snails lay their eggs in the soil or on trees.

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 in tropical islands, but some also live in the cold areas of the Hantong tribe.

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.

At night in the humid night, and by putting in a moist diet, the appetite of the snail is active. But flooding can suffocate snails. Self-feeding viability.

As soon as the baby snail hatches, it will crawl and feed, and will not be cared for by the mother.

Feeding method

The outdoor open includes ditch type, shed type, courtyard type, etc., so that it can grow and reproduce under natural conditions within the protective circle. Indoor enclosed rearing wheels can be recolonized with plastic pots, earthen pots, wooden boxes, cement pools, cylinders, barrels, cans, etc., sealed with gauze covers, wet cloths, and films to keep warm, moisturize, and prevent rodent damage.

Indoor cavity hunger closed feeding is convenient for temperature and humidity control, coupled with sufficient feed, not only can relieve the snail's hibernation, but also achieve the purpose of winter breeding. It is best to close the surroundings with plastic film to maintain temperature and humidity for indoor rearing.

Snails are born to snail mothers.

The adaptability of the snail is very strong, it can not eat or drink for three years without moving and will not die, it likes the humid environment the most, when it is dry, it seals its shell mouth, and begins to go on a hunger strike and dormant, until there is rain Sun airborne Ming Banquet, it will continue to look for food and grow, mainly at night to stimulate the bank to move, and the best period for water prevention and control is in the evening.

Snails lay a large amount of eggs, and can adapt to the surrounding environment to hatch, when the surrounding is dry hatching slowly, when the surrounding is wet, the snail is small, slow to move, but the distance is long, if the potting soil or flower plants are purchased from other places, flower markets, collection, then the probability of snails is higher.

1、"Snails"As the name suggests, the dorsal yarrow volute"Cattle"Righteousness.

2. In fact, although it is small, it has"Corners", the strength is great, the meat is delicious, and it is indeed like a cow.

3. France is the earliest place in the world to raise and eat snails, and there is a recorded history alone, that is, it can be traced back to the ancient Roman period.

4. Nowadays, snails are eaten all over the world, especially in Western Europe and North America. There are about 40,000 species of snails, and the largest is the African snail, which can reach 18 7 cm and weigh 500 grams. Years of annihilation.