Sex car?
Sexuality with a difference Susanna Valentin, das netzmagazin.ch, No. 245, July 2006 "What a question!" many will think who discover this title in the bookshop. After all, in our society, which is largely free of taboos, it is nothing new to talk about sex. It is talked about everywhere - but nowhere as matter-of-factly as Christian Göldenboog does in "Why Sex?" The author Christian Göldenboog is described as a well-founded expert on biology, which clearly comes to light in "Why Sex?". Göldenboog has been writing about the biological side of sexuality in the "Süddeutsche Zeitung" and in "Psychologie heute" for more than twelve years. In "Why Sex" he deals with questions of evolutionary biology and transcribes conversations with scientists on the subject of sexuality. Female intuition Göldenboog takes up many aspects of sexual reproduction and illustrates them with examples from the animal kingdom. "Eggs are expensive, sperm are cheap" - this is how he names a chapter in which he discusses sexual selection. Here, for example, the reader is told that roosters are equipped with combs, which the hen can use to judge whether there are offspring from the rooster in question. If the crest is bright red, this indicates good blood circulation and therefore good health. The male Drosophila (fruit flies) really have to work hard: They perform an excited dance in front of their potential mate then, depending on how perseveringly and how well he could dance, either gets involved with him or lets him down.But whether parallels can now be drawn from the behavior of Drosophila to humans?Men beware The question repeatedly arises in this book: Why is it needed Men at all?In the chapter "Mother Nature's bizarre invention of the male sex" Göldenboog goes into detail about why humans and animals do not all part henogenetic, i.e. develop from unfertilized sex cells. Virgin procreation is relatively widespread in various invertebrate animal species. Many insect species are also parthenogenetic. For example, male ants and male honey bees (drones) develop from unfertilized eggs. - But men, don't worry, we women can't do it without you! From A to Sex Göldenboog deals with various topics of sexuality in his book. Epigenetics, imprint, cloning, the molecular basis of eggs and sperm, sexuality and race, and the regulation of sex ratios in reproduction are also discussed. So a very wide range on the subject Unskilled readers of texts from biology will sooner or later have their heads buzzing with genes and chromosomes. However, that shouldn't stop anyone from picking up this book. After all, we are all affected by the subject discussed here and the biology behind it.
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