Resultados para "Sex" en Naturaleza y ecología

Este libro descubre la más sucia, sorprendente y festiva intimidad de los seres vivos. Ahí fuera se vive una orgía permanente en la que los chimpancés disfrutan de sus penes con espinas y los patos, de sus enormes sacacorchos; donde los pájaros se ponen los cuernos sin remordimiento alguno y las ranas se hacen las muertas para escapar de los pretendientes más insistentes; en el que los hongos tienen tres, cuatro o hasta miles de sexos, algunos peces cambian de sexo y otros llevan los genitales de sus examantes pegados a sus escamas; donde los zánganos eyaculan tan fuerte que revientan.

Just as humans procreate, animals have their own way of getting it on, too! Some ways are quite unexpected, from the cannibalistic mating practices of the praying mantis to the complicated sex life for snails with backwards organs.

The story of evolution as you’ve never heard it before. What’s the easiest way to tell species apart? Check their genitals. Researching private parts was long considered taboo, but scientists are now beginning to understand that the wild diversity of sex organs across species can tell us a lot about evolution. Menno Schilthuizen invites listeners to join him as he uncovers the ways the shapes and functions of genitalia have been molded by complex Darwinian struggles.

Written in a brilliantly engaging style by biologist Jules Howard, this fascinating and highly engaging work covers the how and why of sex on Earth, in all its diversity. From sperm wars to cuckoldry, hermaphrodites and virgin births, spent males, racy harems, clitoral births, hips, breasts and birdsong, penis-percussion, and those riskiest and most elusive of all traits, monogamy and true love, all this and more is discussed in Sex on Earth, as Jules takes us on a voyage of discovery of the ins and outs of animal reproduction.

""[An] intriguing philosophical journey into a critical issue within evolutionary theory that for too long has remained unresolved."" —Wall Street Journal Matt Ridley is one of our finest science writers. This book is a treat for bird lovers and evolutionary biologists alike.” —Richard...

While we joke that men are from Mars and women are from Venus, our gender differences can't compare to those of other animals. For instance: the male garden spider spontaneously dies after mating with a female more than fifty times his size. Female cichlids must guard their eggs and larvae--even from the hungry appetites of their own partners. And male blanket octopuses employ a copulatory arm longer than their own bodies to mate with females that outweigh them by four orders of magnitude. Why do these gender gulfs exist?

Vorsicht! Dieses Buch ist für Jugendliche unter 16 Jahren nicht geeignet. Es enthält explizite Darstellungen sexueller Handlungen und einschlägiges Vokabular. An 77 Beispielen, die von der Grünen Bonellia über den Grasfrosch und das Seepferdchen bis zum nordafrikanischen Dickschwanzskorpion und zur argentinischen Schwarzkopfruderente reichen, verrät der Biologe Tobias Niemann faszinierende Tricks und spektakuläre Stellungen zur Neukombination der Gene. Das Bonellia-Weibchen ist tausendmal größer als das Männchen.