After shaking hands with a stranger, human volunteers often subliminally bring their hand to their nose and sniff it, possibly to collect important olfactory information.

Women with unexplained miscarriages have an altered behavioral and brain response to men's body-odor, and this may reflect a factor in their condition.

Unexplained repeated pregnancy loss is associated with an altered perception of male odors and differences in brain regions that process smells.

Allorecognition in Neurospora crassa requires CWR-1 (cell wall remodeling protein), an essential process that ensures identity of an interconnected fungal syncytial colony and requires the CWR-1 polysaccharide monooxygenase domain, but not its catalytic activity.