3 Past daily light cycle recorded in the strontium/calcium ratios of giant clam shells.
http://www.nature.com/ncomms/journal/v3/n3/full/ncomms1763.html
2 A cold oceanographic regime with high exploitation rates in the Northeast Pacific forecasts a collapse of the sardine stock.
http://www.pnas.org/content/109/11/4175.abstract
1 The embryos of pelagic corals break up in waves yet survive to form smaller colonies.
http://www.sciencemag.org/content/335/6072/1064.abstract
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