Do Humans Play a Role in Causing Deadly Wildlife Cancers?

"A wide array of species [are] afflicted by a range of cancers, according to a paper published in the July edition of Nature Reviews Cancer. 'Wildlife Cancer: a conservation perspective,' summarizes mounting evidence of human's contribution to carcinogenesis in wild-animal populations across the globe, thanks to man-made toxins dumped into wildlife's natural habitats."

Daniel Heimpel reports a Newsweek Web exclusive July 27, 2009.

Source: Newsweek, 07/29/2009