How to avoid being buried alive (if you’re a coral)

This is cool. One problem that corals face in a constantly changing world is the threat of sedimentation, or being covered up by sand or silt which is bad if you are a coral and your zoozanthellae need access to sunlight. (No idea what I’m talking about? Click here.) This coral seems to have a pretty awesome way of getting unburied by inflating with water and shedding the sand tomb from its body.

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