Humpback whales perform most unusual songs in the fauna. Their songs continue from10 to 45 minutes and have a strict form, consisting of five or six different phrases. Only males sing, which has led some researchers to believe that they are trying to attract females with the song. In this theory there is one problem - no one has ever seen interest of female whales to these songs. In addition, for example, males of songbirds are trying to change their trill, to distinguish it from other males. Males of whales are singing the same song. If the song changes during the breeding season - all whales change their songs at the same time. Science does not know why they do it. Possibly, they do it to calm down before the period of reproduction, or to mark their territories. In any case, the theory of competition is unfounded. It is not even known why they change the song. We can assume that when one whale composes a new verse and it turns out incendiary, then other whales quickly adopt it. Another theory suggests that the brain of whales is programmed to change their songs. Researchers simultaneously recorded the songs of whales in Hawaii and the Gulf of Mexico. It was found out that the whales in such distant places changed the songs at the same time. Each whale has its own unique and inimitable voice, so it is thanks to their songs that you can easily estimate their number ... I am glad to inform you that already exist and can be purchased the following CDs: - "Restoration of the digestive system." - "Restore internal environment" (blood, lymph, intercellular fluid, metabolism ...). - "Healing the Soul" ... - "Restoration of the central nervous system." - "The spine and joints." - Disk for pregnant women, disk for newborns. - Slimming Disc “Ideal Figure”. - CD Baby (developmental): "Morning Prayer", "Winter Morning," "Dreams," "Moonlight," "Lullaby."