A
Animals Artists
B
Billionaires
C
Cars Charts
D
Dinosaurs
E
Ecosystems Elements Empires Engines Explorers
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Football
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Galaxies Games Gemstones Gods Guitars
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Helicopters Herbs Heroes Holidays Horses
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Insects Instruments Inventions Islands Italian Foods
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Japanese Foods Jets Journalists Juices Jungles
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Keyboards Kings Knights Knives Korean Foods
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Lakes Landmarks Languages Libraries Lighthouses
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Musicians
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News
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Oceans Olympic Sports Operas Ores Organs
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Paintings Philosophers Planets Programming Languages Pyramids
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Stocks
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Trending
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X Games Sports Xbox Consoles
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Zebras Zeppelins Zodiac Signs Zombie Films Zoos

#1 Ecosystem

Coral Reef

Marine
Tropical
Global Oceans
Aquatic
Coral reefs are the most biodiverse marine ecosystems on Earth, often called the rainforests of the sea. They support around 25% of all marine species despite covering less than 1% of the ocean floor.

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