Extraordinary vortex rings by Robert Jones, 17 June 2013 Watch dolphins – and a variety of other things – create toroidal vortices now 1,490 views comments Tags: create, dolphin, play, toroidal, vortices More Like This... Science What are artificial flavourings? How can scientists synthetically replicate the taste of real food? Science Why do we hiccup? There are over 100 physiological reasons as to what sets hiccups off, Science What makes highlighter pens so bright? Find out the secrets of fluorescent ink now More From The Internet... What was inside a Celtic roundhouse? How do some amphibians and reptiles catch bugs with projectile tongues? What would happen if we blew up the Moon? How loud would stars be if space was full of air?