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Also known as "freak waves," these colossal walls of water have been alleged to be in the range of 100 feet or more. Learn what separates rogue waves from other large waves, what causes them and find out about some of the better-known rogue wave incidents.
Glaciers carve out lakes, grind down mountains and pulverize rocks to dust. These massive ice slabs shape our Earth, but they may be disappearing.