Snails can be seen on the road when it rains. Why?

The reasons why snails can be seen on the road when it rains are as follows:

First, the snail's nest will be flooded after the rain and need ventilation. Snails usually stay in the soil, but once it rains, it rains heavily, so the soil will be covered. At this time, the snail's nest will be filled with water. Will it? Drowning? . If the snail stays in the soil and the air can't get in, the snail can't continue to breathe.

Snails are forced out when it rains. After all, snails will suffocate if they don't breathe. Snails don't like sunshine and bright environment, and they don't want to expose themselves unless they have to. So when it rains, snails actually come out to survive.

Second, the smell after rain will attract snails. Snails usually feed on the leaves of plants. They are very afraid of the sun and usually come out for food at night. But after rain, the leaves of plants will rot faster after being soaked in rain. At this time, the smell of leaves is very attractive to snails and will stimulate their appetite. So the snail will come out for food after the rain, so it can be seen that the snail is one? Eat food? .

Third, snails are passive. In fact, when it rains, snails will be washed away directly, because rain washes away the soil. In addition, snails are small in mass and volume. As long as the rain is a little heavier, it can be washed away. So when it rains, you can see many snails walking on the road. The snail didn't climb it by itself, but it was actually washed out by the rain.

Moreover, snails are actually very afraid of being eliminated. In addition, if the sun comes out soon after the rain, snails are easily killed by the sun. So snails need to return to the soil quickly after the rain clears, but the speed of snails is too slow, so snails washed out are very dangerous.