This is a book of questions, some of which are funny whereas many others are more serious, puzzling and disturbing. A book in which biology is used as a foundation to build a down-to-earth narrative, in the hope of addressing all basic human concerns from a modern, casual and holistic perspective. Thus, an excellent book to question life and death, religions and philosophies, the self and the universe, technology and knowledge, love and sorrow, and so on; in short, questioning what surely needs to be questioned, in different ways and with enough substance for dreams and reflections of both a scientific and humanistic nature. Above all, with enough substance so that the reader may question the music or the noise of the world that can be heard everywhere on a daily basis, full of selfish and extraneous interests.