The team found that when the female mice were exposed to the odor of male mouse urine — but not the odor of female mouse urine or other attractive odors, like appetizing food — a large subset of the mPOA neurotensin neurons was excited into greater activity. (sciencedaily.com)
They are treated with a mild attractive odor (too weak for us to smell), so your puppy will gladly use them! (canismajor.com)
Specifically, odor indicates the extent of overlapping between potential mates» immune systems, such that more attractive odor signals less overlap between mates» immune systems. (scienceofrelationships.com)