Study Shows Domestic Cats Can Differentiate Between Familiar and Unfamiliar Human Scents

A recent study conducted by the Tokyo University of Agriculture has found that domestic cats can differentiate between the scent of their owner and that of a stranger. In the experiment, 30 cats were presented with plastic tubes containing swabs: one with their owner’s scent, one with the scent of an unfamiliar person of the same sex, and one clean swab. The scents were collected from under the armpit, behind the ear, and between the toes. The cats spent significantly more time sniffing the tubes with the stranger’s scent compared to those with their owner’s scent or the clean swab. This behavior suggests cats can distinguish between familiar and unfamiliar humans based on smell, although it remains unclear if they can identify specific individuals. Previous research has shown that cats can recognize voices and respond to human emotions through scent, but this is one of the first studies to test their ability to discriminate between human odors. Experts caution that while cats can tell the difference between known and unknown scents, more research is needed to determine if they can identify specific people. The study also observed that cats often rubbed their faces against the tubes after sniffing, a behavior linked to scent marking. Researchers emphasize that further investigation is required to fully understand the extent of cats’ olfactory recognition of humans.