Longlisted for the 2023 PEN/E.O. Wilson Literary Science Writing Award

A lively exploration of animal behavior in all its glorious complexity, whether in tiny wasps, lumbering elephants, or ourselves.

For centuries, people have been returning to the same tired nature-versus-nurture debate, trying to determine what we learn and what we inherit. In Dancing Cockatoos and the Dead Man Test, biologist Marlene Zuk goes beyond the binary and instead focuses on interaction, or the way that genes and environment work together. Driving her investigation is a simple but essential question: How does behavior evolve?

Drawing from a wealth of research, including her own on insects, Zuk answers this question by turning to a wide range of animals and animal behavior. There are stories of cockatoos that dance to rock music, ants that heal their injured companions, dogs that exhibit signs of obsessive-compulsive disorder, and so much more.

For insights into animal intelligence, mating behavior, and an organism’s ability to fight disease, she explores the behavior of smart spiders, silent crickets, and crafty crows. In each example, she clearly demonstrates how these traits were produced by the complex and diverse interactions of genes and the environment and urges us to consider how that same process evolves behavior in us humans.

Filled with delightful anecdotes and fresh insights, Dancing Cockatoos and the Dead Man Test helps us see both other animals and ourselves more clearly, demonstrating that animal behavior can be remarkably similar to human behavior, and wonderfully complicated in its own right.

What is responsible for the differences between the sexes in so many animals, from the brilliant plumage of birds-of-paradise to the antlers on deer? Why are the traits that distinguish the sexes sometimes detrimental to survival? And why do males and females sometimes behave differently?
Questions like these have intrigued scientists and the public alike for many years. New discoveries are showing us both how wildly variable the natural world is, and how some basic principles can help explain much of that variation. Like natural selection, sexual selection is a process that results from differential representation of genes in successive generations. Under sexual selection, however, the crucial characteristics that determine whether an individual reproduces depend on sexual competition rather than survival ability.
This Very Short Introduction uncovers the history of our understanding of sexual selection, from Darwin’s key insights to the modern day. Considering the investment animals place on reproduction, variation in mating systems, sexual conflict, and the origin of sexual dimorphism, Marlene Zuk and Leigh Simmons discuss questions such as whether females can really choose between males on aesthetic grounds, and how sexual conflict is resolved in different species.