But not the sea star Pisaster ochraceus

Rebecca Gooding and colleagues at the University of British Columbia in Vancouver, Canada, exposed sea stars to rising temperatures and water acidity. They thrived in temperatures of up to 21°C and atmospheric CO2 concentrations of up to 780 parts per million - beyond predicted rises for the next century

The sea star seems to survive because its calcium is nodular, so unlike species with continuous shells or skeletons it can compensate for a lack of carbonate by growing more fleshy tissue instead. The team therefore warn against assuming that global warming will have the same impact across groups of similar species.