Spring is here, or is it? Well the birds are already out singing. The reason why birds sing is something researchers, poets and authors pondered about for many years. Now according to researchers, when birds are exposed to light for longer periods, certain brain cells trigger a series of hormonal reactions telling them to find a mating partner, which they do by singing. However, the questions still remain as to whether these same brain cells are involved in the reproductive system of the birds. For now lets enjoy the music!
