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During the Cryogenian period about 700 to 635 million years ago, Earth experienced a super ice age, one that froze the entire planet from the poles to the equator.—David Bressan, Forbes.com, 20 June 2025 As the last ice age drew to a close, something dramatic stirred beneath the surface.—Pranjal Malewar, New Atlas, 11 July 2025 However, the less adventurous bat-living bed bugs have seen their populations decline since the Last Glacial Maximum–aka ice age–about 20,000 years ago.—Laura Baisas, Popular Science, 28 May 2025 Past research has failed to identify a clear cause for either extinction, although they are thought to have been linked to sea level changes or the onset of an ice age, but an extraterrestrial cause can't be ruled out.—David Bressan, Forbes, 17 Mar. 2025 See All Example Sentences for ice age
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