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Latest Geology of the Grand Canyon area Stories

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2008-04-10 13:20:00

New geological evidence indicates the Grand Canyon may be so old that dinosaurs once lumbered along its rim, according to a new study.


Word of the Day
ecotone
  • A transitional zone between two communities containing the characteristic species of each.
The word 'ecotone' comes 'eco-' plus a Greek root meaning 'tension'.