Animals Beauty

Scientists from Institute of problems of ecology and evolution of the Russian Academy of Sciences assume what to choose the sexual partner a mammal help not only pheromones (these are substances-informants as which the animal smells, drawing of attention of relatives). The important role is played also by so-called early social experience: that is memoirs on mother, brothers and sisters and if it is a question of gregarious animals, and about the father and other relatives. In the childhood ability to distinguish animals of the kind and to understand them is formed. Besides, sexual experience if it, of course, is available is important also. Researchers consider that acquisition of sexual experience is some kind of training on a spice-cake method: after it animals are interested in smells which are let out by an opposite sex of their kind much more strongly.

This mechanism is necessary to avoid crossing of different kinds of animals. After all, as have shown the same researches, mammal distinguish pheromones not only relatives, but also animal other kinds. So, for example, it was found out that males-hamsters show interest not only to a smell of cricetides. In experiment to hamsters have offered on choice urine (it is the original carrier of a smell) males and females of a rat, and a part of females was in status of readiness for pairing (heat). Hamsters-examinees have shown more interest to urine of females, than males of a rat, and most strongly they liked urine of those females at which was heat. It means that the part sexual pheromones are universal smell language which all kinds of animals understand. Scientists believe that it is necessary to search for an explanation of this phenomenon in the essence of distinctions of males and females – in genes. Probably, even molecules of which animals consist, including molecules of smells, have a sex.