There are a number of alternative theories to essentialism. An anthropologist, for example, believes that human behavior is greatly affected by the culture and environment in which he is raised.
Touch. Touch is one of the best-developed senses at birth -- and it's absolutely crucial to bonding. Cuddling your baby will make him feel warm and secure, as will swaddling because it re-creates the confined feeling of the womb. And, yes, babies explore through touch, and their preferred tool is their mouth.
Definition of SENSE for Kids. 1. : a specialized function or mechanism (as sight, taste, or touch) of the body that involves the action and effect of a stimulus on a sense organ. 2. 3.