'Marvellous fun' THE TIMES 'Glorious ' LUCY COOKE 'Colourful' GUARDIAN We find ourselves
in a time of great social upheaval. People are testing the boundaries of just about everything
related to sex and gender. Biological sex long thought to be a simple binary is now being
understood as a spectrum. Gender is being uncoupled from sex and expanded to an astounding
range of diversity. The traditional categories of sexual attraction are being supplanted by
more creative labels. Where is this shift coming from? The answer may surprise you. Diverse
sexual behaviour is not a new development or even a human one. It didn't emerge from recent
progressive culture it's the product of billions of years of experimentation throughout the
animal kingdom. Evolutionary biologist Nathan H. Lents takes readers on a journey from silent
crickets to lesbian albatrosses to bonobos who kiss revealing what this incredible array of
sexual diversity can teach us about our own. Amusing enlightening and meticulously researched
Lents convincingly shows that diverse genders and sexuality have evolutionary functions far
beyond procreation. The Sexual Evolution is a perspective-altering book that advocates
understanding and demolishes biases held by even the most open-minded among us.