“The Trials of Life” by David Attenborough is the final book in his classic Life trilogy. It explores ethology, the science of animal behavior. The book explains how all creatures, from rats to humans, have to overcome certain challenges to live. These challenges include maturing, finding food, navigating, defending oneself, socializing with others, and finding a partner. This book is a fascinating exploration of the natural world because of the extraordinarily broad spectrum of solutions to these problems.