[Cicero]

Hard work, but I traced it back, and back, to the source:

http://www.mnn.com/earth-matters/animals/stories/naked-mole-rats-have-the-worlds-ugliest-most-sluggish-sperm

[Cicero]

Well, no. They got it from here:

http://www.newscientist.com/article/dn21240-naked-mole-rats-make-deformed-sluggish-sperm.html

And THEY got it from here:

http://www.biomedcentral.com/bmcevolbiol/

Word is spreading fast!