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Published on 25 Jan 2018 / In Travel & Events

Watch what would happen if all corals on planet Earth died?

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What if all the coral reefs disappeared?

So what is coral? A living creature, coral can be hard or soft. The coral reefs that we see in the oceans are formed by colonies of little critters called coral polyps, distant relatives of sea anemones and jellyfish. Hard coral is made when coral polyps extract calcium from seawater and turn it into external limestone shelters. Other coral polyps convert the calcium into internal skeletons and create soft corals. And when many colonies of coral polyps get together and create a larger home, we call it a coral reef.

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