Humans may think movement and dancing is restricted only to ourselves, however, researchers at the University of California, San Diego’s Scripps Institution of Oceanography have been able to give us a new view entirely.
Scientists at UC San Diego have created a Benthic Underwater Microscope, otherwise known as BUM, to allow them to study small coral organisms in their natural habitat. While coral is typically a large specimen that can span several feet, it is made up of tiny coral polyps, some of which are difficult or impossible to see with the naked eye. The BUM is powerful enough to even see single-cell algae that live within the coral reef.
Andrew Mullen, PhD student at the institute, said of the new equipment:
“The underwater microscope is the first instrument to image the seafloor at such small scales. The system is capable of seeing features as small as single cells underwater.” 
The lens is equipped with a camera that can take photo and videos. It also contains a computer that can finely focus the lens and store the images for later observation. What’s more, it comes with an LED light to create enough illumination for the photographer to snap his or her image, and can take pictures of organisms as small as one-hundredth of the width of a human hair.
Mullen and his team studied coral reefs and coral reef polyps off the coast of Maui and the Israeli city of Eilat. 
The dancing, however, serves more of a purpose than simply recreation or exercise. Researchers found that this musicality of the polyps was actually them exchanging nutrients with one another after eating. In some cases, they send filaments out to each other in order to digest a weaker plant next to it. It is, in a way, survival of the fittest.
 LA Times
Anna Scanlon is an author of YA and historical fiction and a PhD student at the University of Leicester where she is finishing her degree in modern history.