They’re not the work of World War II bombs or aliens or fairies. Instead, mysterious underwater rings spotted off the coast of Denmark are the
result of poison, biologists say.
Striking rings of green eelgrass some of them up to 49 feet wide can occasionally be spotted in the clear Baltic water off the coast of Denmark’s
island of Mn. The formations were captured in tourist photos in 2008 and again in 2011, sparking the type of speculation that’s usually reserved for
But biologists Marianne Holmer from University of Southern Denmark and Jens Borum from University of Copenhagen assure that the circles have “nothing
to do with either bomb craters or landing marks for aliens.
The biologists concluded that the rings formed because of the radiating pattern in which the eelgrass grows and dies when exposed to toxins.
Add another explanation in addition to swamp gas and balloons, this time underwater, eelgrass.
I hope its not posted yet, i dint knew about these rings before, enjoy the read.