we all know sleeping is very important for us and 7 to 8 hour sleep very important for everyone ,but you guy know that snail can sleep for 3 years ,yes that is ture years reason of sleeping 3 years is when the weather is change and extrame cold weather come then snail cover his shell slimy gel that prevents much air passage. that help him stay alive when he sleep for 3 years
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From @r4j4777