Corals emit a colourful ‘sunscreen’ to protect them from rising sea temperatures 

Some corals emit a ‘sunscreen’ in the form of a dazzling colourful display in a ‘fight for survival’ against rising sea temperatures, according to new research.  Coral bleaching – the process of coral expelling algae triggered by hotter waters – usually turns coral a ghostly shade of white.  But some bleaching corals undergo what had … Read more