Smelling animals to ... communicate

A US study showed that rats smelled for social positioning and to avoid aggression, according to the Daily Mail.

Dr. Daniel Wesson at the Medical School of Case Western Reserve University in Ohio (USA) learned how mice interact with each other.

Animals have their own way of communication - (Photo: Shutterstock)

He observed that when two mice approached each other, the dominant mouse would smell more, while the less dominant mice would smell less.

If the mouse is less dominant than not doing so, the mouse will prevail over aggression.

He said that like humans, rodents also divide social hierarchy.

Human pets often smell or sniff. However, because humans do not communicate in this way, it is not recognized that it is an animal communication.