Here is my review of The Voyage of the Beagle.
I had the amazing opportunity to go to Torres del Paine while I was studying abroad in Chile last quarter. While I was there, I saw... guanacos! Here are a few photos I took of the guanacos. The second photo is a picture of a herd of guanacos.
Random side note: I also tried some alpaca (a relative of the guanaco) while in Peru. It tastes sort of like beef... :)