SINGAPORE - At Pekan Quarry on offshore Pulau Ubin, a constellation of artificial wetlands maps the once-plain water surface.
The new habitats mean that creatures that would not have been found on an open expanse of water, such as waterhens, kingfishers and damselflies, can now be seen flitting among the reeds and cattails swaying in the wind. Herons and otters, too, have been seen there.
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