Submitted by westondeboer t3_ylecgx in gifs
Vineyard_ t1_iuzjch9 wrote
Reply to comment by mapadofu in How a camel climbs a sand dune by westondeboer
Makes sense, because one side of the dune is sand that was recently dropped there by wind, while the other side is sand that once had sand dropped on it by wind and has been compressed by that sand's weight.
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