When you're moving at a snail's pace, it usually means being extremely slow. On the flip side, it can also mean being patient enough to maintain a steady pace. Snails may be painfully slow, but there's a lot more to them than their reputation as nature's slowpokes. In fact, not many know about the different types of snails aside from the ones they see in their gardens. Uncover the secrets behind these animals' shells with these snail facts.