An interesting paper. If confirmed, has the potential to shake things up.

A fun factoid I learned from it: mouse sperm (sic!) can smell odors (" the odorants ...enter the circulatory stream and activate odorant receptors that are expressed on sperm")

A sad factoid I learned from it: "A recent study used a social defeat procedure in mice and found paternal transmission of depressive-like behavior in subsequently conceived adult offspring"

And a giggly expression: "sexually inexperienced and odor naive ... male mice" :-)