yes-a snail lays a package of small round eggs on the ground. Several packages often are left in the silvery, slippery trail behind a crawling parent. The eggs mature and the embryos develop miniature shells like tiny fragments of glass. The little hearts begin to beat, and in a week or so the young snails emerge. As a rule, they eat their own egg shells. Then they crawl off to find other snail food.
No, snails do not make a nest, they do stay on a nest, they do not hatch eggs. The eggs mature and hatch by themselves.
yes
When snails lay eggs they are acting out the natural process of reproduction.
depending on the kind of snails you have you will be able to find their eggs. APple snails and mystery snails will lay their eggs in big clusters just above the waterline. If you don't want to have more snails you can just remove the clusters of eggs. All other snails breed like crazy. You will be able to see their eggs on the glass or on ornaments or plants in your aquarium. They are more difficult to control. The eggs will appear to be a clear sort of film.
Yes
No
Snails do not give live birth. Instead, they lay eggs which hatch into small baby snails.
It depends on the type of snail. Maybe 30 to 20 eggs depends on the tip of the snail. Snails that lay their eggs in aquarium's tend to give birth from 200 to 300 eggs. Snails can only lay 2 at a time. Hermaphroditic snails lay about 80 eggs 6 times a year. Most land snails lay 40 to 60 eggs (according to some authors even 100). Well that's all I know about how many eggs a snail lays a year! :)
Well, if you add a few eggs, then the snails can have a cake!
no
yes
Mommy and daddy snails.