Companion Animal Psychology Book Club March 2022

“Stories that both dazzle and edify… This book is not just about life, but about discovery itself.” —Siddhartha Mukherjee, New York Times Book Review.

Animal Book Club March 2022

By Zazie Todd PhD

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This month, the Animal Book Club is reading Life’s Edge: The Search for What It Means to Be Alive by Carl Zimmer.

From the publisher,

“We all assume we know what life is, but the more scientists learn about the living world—from protocells to brains, from zygotes to pandemic viruses—the harder they find it is to locate life’s edge. 

Carl Zimmer investigates one of the biggest questions of all: What is life? The answer seems obvious until you try to seriously answer it. Is the apple sitting on your kitchen counter alive, or is only the apple tree it came from deserving of the word? If we can’t answer that question here on earth, how will we know when and if we discover alien life on other worlds? The question hangs over some of society’s most charged conflicts—whether a fertilized egg is a living person, for example, and when we ought to declare a person legally dead. 

Life's Edge is an utterly fascinating investigation that no one but one of the most celebrated science writers of our generation could craft. Zimmer journeys through the strange experiments that have attempted to re-create life. Literally hundreds of definitions of what that should look like now exist, but none has yet emerged as an obvious winner. Lists of what living things have in common do not add up to a theory of life. It's never clear why some items on the list are essential and others not. Coronaviruses have altered the course of history, and yet many scientists maintain they are not alive. Chemists are creating droplets that can swarm, sense their environment, and multiply. Have they made life in the lab? 

Whether he is handling pythons in Alabama or searching for hibernating bats in the Adirondacks, Zimmer revels in astounding examples of life at its most bizarre. He tries his own hand at evolving life in a test tube with unnerving results. Charting the obsession with Dr. Frankenstein's monster and how the world briefly believed radium was the source of all life, Zimmer leads us all the way into the labs and minds of researchers engineering life from scratch.”


Life’s Edge is available wherever books are sold. It and all of the previous book club choices (and more!) are also available in my Amazon store: https://www.amazon.com/shop/animalbookclub.

The book club is open to people who subscribe to my free Companion Animal Psychology newsletter and/or my premium newsletter, The Pawsitive Post. Please feel free to sign up and join us!

Of course, you are welcome to read alongside us without joining the group. 


Zazie Todd, PhD, is the award-winning author of Wag: The Science of Making Your Dog Happy and Purr: The Science of Making Your Cat Happy. She is the creator of the popular blog, Companion Animal Psychology, and also has a column at Psychology Today. Todd lives in Maple Ridge, BC, with her husband, one dog, and two cats. 

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