Did you know that a snail can sleep for up to 3 years in a row without eating?

As a survival mechanism, a snail undergoes a kind of hibernation called estivation to protect itself from unfavorable conditions like drought and extreme cold. This helps prevent dehydration and ensures its survival. During this hibernation, the snail completely withdraws into its shell and attaches itself to a smooth surface in a suitable location using mucus, which helps retain moisture. This protects the snail from cold and dehydration. If conditions remain unfavorable for awakening, such as prolonged cold, this hibernation can, in extreme cases, last up to 3 years.