Why do earthworms crawl out in rainy days?

Earthworms breathe by oxygen diffused from the atmosphere into the soil. The better the soil ventilation, the better the metabolism of earthworms. In rainy days, the rain will fill and seal the pores of the soil, and it will be difficult for earthworms to breathe, resulting in a large number of earthworms crawling out of the ground to breathe air.

Earthworms breathe by oxygen diffused from the atmosphere into the soil. The better the soil ventilation, the more vigorous its metabolism, which not only produces more earthworm cocoons, but also shortens the maturity period.

Habits of earthworms:

Earthworms are nocturnal animals. They live in mud caves during the day and go out at night. Usually go out at 8: 00 pm in summer and autumn until about 4: 00 am the next day. They eat and mate in dark conditions and like quiet environment. Although earthworms are distributed all over the world, they prefer a relatively high temperature, which stops their growth and development below 8℃, and the optimum temperature for reproduction is 22 ~ 26℃.

Earthworms are omnivorous animals, except glass, plastic and rubber, others such as humus, animal feces, soil bacteria, fungi and their decomposition products are edible. He has a keen taste, likes sweets and sourness, hates bitterness, likes soft feed, and is especially greedy for animal food. He eats food equivalent to his own weight every month, and about half of the food is discharged as feces through the digestive tract.