I have to wonder if the first humans were sensitive to beauty or if it is something we have be taught over the years.

Beauty is in the eyes of the beholder: http://www.chinapage.org/story/beauty.html "Beauty is in the eye of the beholder" - Origin: This saying first appeared in the 3rd century BC in Greek. It didn't appear in its current form in print until the 19th century, but in the meantime there were various written forms that expressed much the same thought. In 1588, the English dramatist John Lyly, in his Euphues and his England, wrote: "...as neere is Fancie to Beautie, as the pricke to the Rose, as the stalke to the rynde, as the earth to the roote." Shakespeare expressed a similar sentiment in Love's Labours Lost, 1588. http://www.phrases.org.uk/meanings/59100.html Have you ever noticed that good looking girls usually hang out together with other good looking girls, but when it come to couples the lousiest looking guy dates a Pretty girl and mostly vice versa too. http://anthonysmirror.blogspot.com/2005/11/beauty-is-in-eyes-of-beholder.html Beauty in eyes of beholder, study confirms: WASHINGTON: When it comes to something pleasant, it seems that the phrase "easy on the eyes" may hold more truth than earlier believed, for a study has found that objects or people appear more attractive when the mind can process their looks faster. http://timesofindia.indiatimes.com/articleshow/2037080.cms Scientists ponder beauty and the eye of the beholder: Evidence increasingly suggests the human brain is hard-wired for aesthetics. http://www.sigidiart.com/Docs/beauty.htm