Monday, 1 March 2010

A Snail Can Sleep For 3 Years...

How I Heard About This: One of my students asked me if snails got tired, it seemed to him that they moved so slowly that they were almost resting. I decided to look up whether they slept at all.
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Backup Source:
Topic: Animals/Biology

Details: Snails are members of the mollusk family and need moisture to keep themselves alive. On a very hot day snails will retreat into their shells and wait until night before coming out to eat. When they do retreat into their shells they seal the entrance with a layer of slime that then hardens, leaving only a small hole for air. It has been shown that snails living in particularly dry areas, such as deserts, can hibernate up to 3 years before coming out to find water.

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