Shadow photos of dogs reveal their 'primal nature'

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Photographers often go to bizarre lengths to earn the confidence of their subjects.http://feeds.feedburner.com/~ff/rss/cnn_us?d=yIl2AUoC8zA</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=7KB4n_m28wQ:ZxYInhM-MNA:yIl2AUoC8zA) http://feeds.feedburner.com/~ff/rss/cnn_us?d=7Q72WNTAKBA</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=7KB4n_m28wQ:ZxYInhM-MNA:7Q72WNTAKBA) http://feeds.feedburner.com/~ff/rss/cnn_us?i=7KB4n_m28wQ:ZxYInhM-MNA:V_sGLiPBpWU</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=7KB4n_m28wQ:ZxYInhM-MNA:V_sGLiPBpWU) http://feeds.feedburner.com/~ff/rss/cnn_us?d=qj6IDK7rITs</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=7KB4n_m28wQ:ZxYInhM-MNA:qj6IDK7rITs) http://feeds.feedburner.com/~ff/rss/cnn_us?i=7KB4n_m28wQ:ZxYInhM-MNA:gIN9vFwOqvQ</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=7KB4n_m28wQ:ZxYInhM-MNA:gIN9vFwOqvQ)
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