Submission + - Rats Ate Easter Island (wsj.com)
kgeiger writes: The Wall Street Journal reviews a new book about Easter Island. Contrary to Jared Diamond's 2005 book Collapse, Terry Hunt and Carl Lipo's The Statues that Walked (Free Press, 2011) posits that brown rats deforested Rapa Nui, that slavers decimated the population, and that the phosphate-poor soils limited both agriculture and population. Because palm trees are soft and fibrous, they make poor rollers; the moai were in fact "walked" into position the same way one person can move a heavy, upright refrigerator by rocking and shifting it.