Coral reefs are beautiful underwater colonies of tiny animals (polyps - related to sea anenomes) built up gradually into hard structures from the calcium carbonate that they secrete.
They are amazingly diverse ecosystems - even though they cover less than 1% of the Earth’s surface, they are home to over 25% of all marine life. Scientists estimate there may be as many as eight million undiscovered species living in or around coral reefs.
Did you know that...
- the Great Barrier Reef is the only living structure visible from outer space?
- full grown coral can eat little baby coral?
- there are more than 2,000 coral reefs in the world - some of them off the coast of the UK?
The what and the where of coral
Here is a selection of links and resources to help introduce coral and coral reefs to students. Beatrice the Biologist provides a funny and simple introduction, Corals, baby - explaining why coral is an animal and not a plant. A simple, colourful series of 'infographics' on the CNN website gives basic facts and figures: The wonderful world of coral reefs. You can find lesson plans for all ages on what coral is, where reefs are found and why they are in danger, together with a range of photos and film clips, on Reef Relief's website. There is an interactive map showing where coral reefs are found on the Millennium Coral Reefs Landsat Archive website. Google Street View has gone underwater to show footage from several coral reefs around the world. And on the Guardian website you can see a clip showing how they filmed the reefs. Digital Explorer offers web talks for students and KS3 Science and Geography resources on coral reefs: Digital Explorer: Oceans. Did you know there are Scottish coral reefs? Find out more from this BBC News article: Underwater robots to 'repair' Scotland's coral reefs.The beauty of coral reefs
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A home to many animals
Here we suggest links to support investigations into the many animals that live on coral reefs – the second most diverse ecosystems on the planet after rainforests. BBC Learning Zone Class Clips has a short video on the diversity of reefs. Watch this YouTube clip showing the incredible camouflaging of octopus vulgaris - or read about 'crop circles' created by Japanese puffer fish. A comprehensive guide to teaching about sea turtles (PDF) Enchanted Learning has a huge range of printouts of animals that live on coral reefs, useful for primary pupils.What future for coral reefs?
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Global Calendar
The following days could provide a useful prompt for discussing coral reefs - following the links for more information.- World Tourism Day (27 September)
- World Maritime Day (27 September)
- International Day for Biological Diversity (22 May)
- World Environment Day (5 June)
- World Oceans Day (8 June)