Every year, the arrival of spring in northern climes is heralded by ice breaking up and melting away from the surfaces of ponds and lakes thickly frozen during the long winter. Henry David Thoreau witnessed the ice breaking up on Walden pond during the two years he lived on its shores, and described this springtime occurrence as follows:
"The pond began to boom about an hour after sunrise, when it felt the influence of the sun's rays slanted upon it from over the hills; it stretched itself and yawned like a waking man with a gradually increasing tumult... I looked out the window and lo! where yesterday was cold gray ice there lay a transparent pond already calm and full of hope as in a summer evening, reflecting a summer evening sky in its bosom, though none was visible overhead, as if it had intelligence with some remote horizon."The sights and intriguing sounds of this much-anticipated annual phenomenon are beautifully captured in the film below. This is another great piece from Nature 365 - you might remember seeing another of these films in a previous Nature Nerd Wednesday post.
Nature 365: April 26, 2015 from FollowFocus on Vimeo.
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