Underwater Volcanoes of Antarctic

Scientists discovered 12 previously unknown underwater volcano in Antarctic.The researchers studied the topography of the bottom near the South Sandwich Islands from 2007 to 2010. With the help of sonar, they could find new volcanoes.The height of some of them up to three kilometers. Seven of newfound volcanoes are active and is visible above the water surface, they look like a chain of islands.In addition, the researchers found a  funnel with a diameter of about five kilometers, which remained after the destruction of one of the volcanoes. 

Specialists at the moment very little is known about the features of submarine volcanoes in the high latitudes and their influence on the biology of these areas. Active volcanoes warmed the water around them and can thus create favorable habitats for many living organisms.
source:www.antarctica.ac.uk