The not so man eating Giant Clams- image

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The not so man eating Giant Clams- image

The giant clam, Tridacna gigas, or traditionally, pa’ua, is the largest living bivalve mollusk. T. gigas is one of the most endangered clam species.

It was mentioned as early as 1825 in scientific reports. One of a number of large clam species native to the shallow coral reefs of the South Pacific and Indian oceans, they can weigh more than 200 kilograms (441 lb) measure as much as 1.2 meters (4 ft) across, and have an average lifespan in the wild of 100 years or more

What's more, National Geographic suggests these bottom-dwelling behemoths lie in wait to trap unsuspecting swimmers or swallow divers whole. Even reputable scientific handbooks once claimed the Giant Clam had been the cause of fatalities.

The US Navy Diving Manual gave explicit instructions on how to free oneself from the potentially lethal grasp of this heaviest and most massive of shellfish, the trick being to sever the adductor muscle – considered an aphrodisiac in China – with which the clam shuts itself.

However no account of a human death at the jaws of a Giant Clam has ever been substantiated. Nicknames like 'Man-Eating Clam' and 'Killer Clam' highlight this organism's formidable reputation, but as so often in our relationship with the Earth's creatures, it's not we that should be fearful of them.

 http://www.environmentalgra...
 http://en.wikipedia.org/wik...

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By netchicken: posted on 14-4-2010








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