'Marvellous fun' THE TIMES
'Glorious ' LUCY COOKE
'Colourful' GUARDIAN

At a time when people are testing the boundaries of just about everything related to sex and gender, The Sexual Evolution shows that diverse sexual behaviour is not a new development, or even a human one. 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. Amusing, enlightening and meticulously researched, this is a book that will demolish biases held by even the most open-minded among us.

"In The Sexual Evolution, the US biologist Nathan Lents romps through the mating habits of the animal kingdom, from polyamorous swans to 'depraved' penguins . . . This is all marvellous fun" - * The Times *

"An entertaining and informative romp through mating strategies in nature . . . Garter snake orgies, gender-masking hyenas, lusty bonobos and the lesbian Laysan albatrosses of Hawaii - this book has it all. All that diversity is fascinating, and frequently funny" - * Guardian *

"The Sexual Evolution is a thoughtfully and delightfully written book full of illuminating and entertaining information that will be new to most readers. At a time when ignorance and misinformation about sex, gender, reproduction and intimacy abound, we could all benefit from reading this research-packed tour" - * Science *

"The onus is on all who wish to take part in the sex-gender debate to be reminded of what is fact and what is conjecture. [This] book provide[s] the facts" - * Times Literary Supplement *

"Enthralling . . . Lents gleefully tears down cis, hetero and monogamous norms, outlining surprising case studies that give the lie to restrictive conceptions of gender and sex. The result is an indispensable glimpse into the queerness of animals" - * Publishers Weekly *