View of the Appalachian Mountains by David Hilowitz (cc by)
Geologist cubeb brings a bit of temporal perspective (and a much better slogan than "diamonds are forever") to the thread for Karmakaze's post on the incomprehensible antiquity of the Appalachian mountains.
The White Cliffs of Dover (NT) 19-04-2012 by Karen Roe (cc by)
MeFi member barchan's tongue-in-cheek comparison of dinosaurs vs. smaller fossils is quite amusing.
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