I assume you mean fresh water snails, like apple snails or mystery snails. These types of snails (fresh water) are usually hermaphrodites, which means they can reproduce with any snail. The snails exchange sperm with each other. Or, occasionally your snail will be self-fertile, and get itself pregnant. If your snail is pregnant, it will lay it's eggs outside of water, like on the rim of the tank. It needs two to three inches to lay it's eggs, and the eggs will have a razor blade like thing somewhere around them to protect them. The eggs look like little bubbles on the side of the fish tank, or like Chewing Gum! Sometimes they're blue, green, pink, white, or somewhat clear. After your snail lays eggs and the environment is suitable, in a few weeks you'll have some snail babies!
on the soil
Water
Snails are hemaphrodites(they are boys and girls) which means they have a set of male and female sex organs.That means that they can get pregnant by themselfs or other snails.
yes snails do have mothers. the mothers crawl to the top of the tank when they are pregnant and lay their eggs at the top of the tank above the water line.
The aquatic trapdoor snail is a livebearer. It needs two snails to reproduce, but it would be possible for them to be purchased pregnant then have babies on their own.
The one that is underneath the other one. :)
Giant African Land Snails (GALS) often hold their eggs for 3-6 days before laying them 1-1.5 inches deep in the soil.
Apple snails are freshwater aquatic snails. Garden snails are land snails.Apple snails have lungs and gillsGarden snails have lungs onlyApple snails skin is thin and translucent (with slime)Garden snails skin is thick and leathery (with slime)All apple snails have two sets of antennaeGarden snails have species with one and two sets.
water snails but not regular snails
Sea snails Freshwater snails
Apple Snails will eat other snails if you don't feed them. If you feed them, then they are alright.
Snails do not have bristles. Snails do have a raspy tongue though.
no snails are not harmful.