Grow coral on Lego? How Singapore scientists are trying to protect the world's reefs

SINGAPORE - There were more than a dozen of them in the tank - shells open, batik-printed flesh on display.

"Tear drop maxima", read the words scribbled on the glass. The small clams, no bigger than an outstretched hand, cost $150. The largest of the lot would set a buyer back by $200.

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