facts about the snail

Snails are one of the earliest known types of animals in the world. There is evidence that they evolved more than 600 million years ago.
All snails are classified as mollusks because of the hard shell that protects their bodies.
They are number two behind insects when it comes to their numbers.
Many species of snails actually hibernate during the colder months of the year. They cover their bodies with a thin layer of mucus which prevents them from drying out. Sometimes snails are also able to hibernate in the summer to survive if they are faced with a severe drought.