Blame it on the Rain

Jan. 25, 2012

Deep in the caves of Southern Mexico, UNLV geoscientist Matthew Lachniet hopes to reveal why some of North America’s most prosperous early civilizations died out.

The evidence he’s looking for isn’t hidden among ancient cave paintings, and it’s not the type of thing you’d see treasured in an Indiana Jones movie. Nope, he’s looking for a stalagmite, a pile of mineral deposits rising from a cave floor.

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