"The Puzzle of Left-Handedness"
by Rik Smits
Reaktion, 304 pp., $35
Let's get one thing straight: It's not weird that 10 percent of the human population is left-handed. It's weird that 90 percent is right-handed. In all other animals that show handedness (or pawedness or flipperedness), the split is virtually even. So why are humans so lopsided? Nobody really knows.
Sorry, that last line should have carried a spoiler alert, because it gave away the ending - and the middle and the beginning - of "The Puzzle of Left-Handedness." There are no startling conclusions in this book. ...
http://seattletimes.nwsource.com/html/books/2017066767_br25left.html?syndication=rss
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