The weight and movement of glaciers of the Ice Age has shaped about one-third of the Earth's landmass. Glacial movement formed rolling hills, carved out valleys and created a rich variety of landforms. The Burren in Ireland is one of the finest examples of landscape shaped by glaciation. Learn more about the Burren in this video segment from Nature.
This video is available in both English and Spanish audio, along with corresponding closed captions.
Learn more about the Nature film "Ireland."
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