Ever since the publication of “The Origin of Species by Means of Natural Selection” by Charles Darwin in 1859, many theories have been put forward regarding the reasons as to why animals and humans are different. Whilst there was an initial tendency to focus on the differences apparent in the main anatomic characteristics of the human body, in more recent time research has concentrated on differences that are evident both in the anatomy and in that of the workings of the human brain. While in the past, the essence of the human being was placed on the pelvic structure, the creation of tools or even the intermaxillary bone, the introduction of new technology and cerebral imaging is enabling us to glean previously unthinkable information regarding the evolution of specific structures and parts of the brain. All these discoveries can be associated with new theories based on a better understanding of the workings of the human mind. Hence, as a result of an enormous joint effort, a comprehensible description of the cause of the origin of mankind is emerging. This allows “love”, once considered as merely a simple emotion, to be at the very core of explaining the evolutionary characteristics of the human being.