Saturday, October 30, 2010

Cool corals

Splash! Eduardo Sorenson leaps from the boat.He and three other drivers slide under the icy waters off the coast of Chile.Cold seeps through his dive suit.Yet he goes deeper.At 35 meters(115feet) below the surface, his flashlight barely lights up the murky water.Does anything live here.Suddenly, he spots a flash of colour.He swam closer>Bright red corals sprout from rock walls.Tiny animals called coral polyps wave their rosy tentacle.feathery yellow sea pen corals sway gently.Why are these find s in Chile and Alaska so surprising?Scientists once thought corals mostly grow in warm, shallow water.The great barrier reef in australia ia a perfect example.There, sun sun lights up endless hills of pink, purple, and yellow corals.A wrinkly one looks just like a giant human brain!Now imagine the deep dark ocean.What do you see? If you're like many people, you may think, "Not muc"!"Well think again.Divers and submarines are exploring the oceans' deepest, darkest, and coldest spots.In many places. they're finding colourful corals.these discoveries keep changing what we know about corals.it turn out some corals can grow in waters as chilly as-1 degrees celsius (30 degrees Fahreheit).They can survive in the dark and deep waters!it turns out that more corals may grow in cold dark seas than in warm and tropical waters.

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