In a recently published study in Nature Communications researchers from the Scripps Institution of Oceanography at the University of California at San Diego show off the stunning results of their latest foray into underwater microscopy: Polyps "kiss." Single-celled algae jump ship as the water warms — a devastating event known as coral bleaching. Disparate species of coral come to microscopic blows.
Thanks to The Benthic Underwater Microscope (BUM),we can see a high-resolution video of corals kissing, fighting and growing.
BUM can capture only images of objects about a tenth of the width of human hair (about 10 micrometers), while a traditional microscope can do a lot better than that. The thing is that BUM allows researchers to record real-world behavior on a smaller scale.
source - https://www.washingtonpost.com;http://www.nature.com/