HUMAN EXTINCTION http://www.copa.org/library/articles/toxcat/sperm.htm http://www.sciencenet.org.uk/soundofsci/fertility.html http://www.ejnet.org/rachel/rehw477.htm http://www.eye.net/eye/issue/issue_02.15.96/NEWS/env0215.htm
http://www.copa.org/library/articles/toxcat/sperm.htm http://www.sciencenet.org.uk/soundofsci/fertility.html
http://www.copa.org/library/articles/toxcat/sperm.htm
http://www.ejnet.org/rachel/rehw477.htm
http://www.eye.net/eye/issue/issue_02.15.96/NEWS/env0215.htm