A source of tactile information.

All the information that surrounds us can be classified into types according to different criteria, namely, according to the way of perception, information is:
Visual – perceived with the help of the organs of vision.
Sound is the organs of hearing.
Tactile – tactile receptors.
Olfactory – with the help of olfactory receptors.
Taste – taste receptors.
We are interested in tactile information and what sources of it exist.
To begin with, tactile information is that information that is perceived only through tactile action and thus can be recognized by a person, a living being, by touching him.
Since these are tactile data, based on their nature, interaction can occur only at close or very close distance.
Distributed mainly in the animal kingdom: insects, vertebrates.
Also, this type of information is used, for example, when greeting, after aggressive actions for reconciliation.
Interaction with each other is expressed in touches, it can be hugs, pats, kisses, blows, bites. The latter actions express aggression between creatures.
All of these influences work positively and maintain significant order in any community, be it humans or animals.