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Apes on the Edge

Chimpanzee Life on the West African Savanna

Apes on the Edge

Chimpanzee Life on the West African Savanna

A moving story of survival and an eye-opening introduction to an extraordinary community of chimps and people.
 
Fongoli chimpanzees are unique for many reasons. Their female hunters are the only apes that regularly hunt with tools, seeking out tiny bush babies with wooden spears. Unlike most other chimps, these apes fear neither water nor fire, using shallow pools to cool off in the Senegalese heat. Up to 90 percent of their home range burns annually—the result of human hunting or clearing for gold mining—and Fongoli chimpanzees have learned to predict the movement of such fires and to avoid them.
 
The study of Fongoli chimps is also unique. While most primate research occurs in isolated reserves, Fongoli chimpanzees live alongside humans, and as primatologist and anthropologist Jill Pruetz reports, this shared habitat creates both challenges and opportunities. The issues faced by Fongoli chimpanzees—particularly food scarcity and environmental degradation—are also issues faced by their human neighbors. This connection is one reason Pruetz, who has studied Fongoli apes for over two decades, created the nonprofit Neighbor Ape in 2008 to provide for the welfare of the humans who share their landscape with apes. It is also why Pruetz decided to write this book, the first to offer readers a view of these chimps’ lives and to explain the specific conservation efforts needed to help them. Incorporating stories from Pruetz’s time in the field, including the compelling rescue of a young chimp from poachers, Apes on the Edge opens a fascinating window into primate research, conservation, and the inner workings of a very special population of our closest nonhuman relatives.

168 pages | 8 color plates, 25 halftones, 1 line drawings | 5 1/2 x 8 1/2 | © 2025

Animal Lives

Biological Sciences: Behavioral Biology, Conservation

Reviews

"Pruetz carefully weaves storytelling about individual chimpanzees with clear explanations regarding the importance of her observations to relevant ecological theory in a way that is accessible, enjoyable, and educational all at once. . . . Apes on the Edge provides an enchanting overview of Pruetz’s life as a field primatologist, and I am confident that this book will join the ranks of the works of Jane Goodall, Dian Fossey, and Biruté Galdikas to inspire the next generations of field primatologists."

Conservation Biology

"Apes on the Edge . . . does extremely well in acting as an invitation to learn more about these remarkable great apes and is also a very compelling book to read. Far from the all-too-common ’look how similar they are to us’ approach taken by too many authors of previous books about Chimpanzees, Pruetz shows the Chimpanzees of Fongoli the respect they deserve in and of their own Chimpanzee selves. What’s more, she does this not out of the modern, cold sterility that preaches the doctrine of professional distance, and that prohibits any trace of anthropomorphism or empathy in anything written, but rather out of a clear, straight-forward, and honest acknowledgement of their own innate importance as fellow creatures on this planet we all share. For this alone I would recommend the book; that it is such a remarkably informative, interesting, and enjoyable book to read is the whipped cream and cherry on the top."

John Riutta | The Well-read Naturalist

Featured in “Wild Reads: 10 New Books that Celebrate Wildlife and Their Environments”

The Revelator

"Pruetz tells the stories of individual chimps as they cycle through the year, move across the landscape, and age over time. They face many dangers, including wildfires, hyenas, leopards, poisonous snakes, and hippos."

The Explorers Journal

"Vivid descriptions of the chimpanzees’ tool-assisted hunting—a mainly female behavior focused on the bush baby—test primatologists’ assumptions of chimpanzee social roles and demonstrate species flexibility in the unique responses bush babies make to this type of predation. Fongoli chimpanzees are an important relational model for testing hypotheses about human ancestors while elucidating the limits of the species’ capacity for adaptation, including their survival in human-dominated landscapes. Beginning researchers and lay people will find this narrative of the joys and challenges of fieldwork and conservation riveting. Highly recommended."

Choice

“Pruetz’s passion for her work, the chimpanzees, and the local community come through so clearly in Apes on the Edge. This captivating book will appeal greatly to the scientific community as well as the lay reader interested in chimpanzees, animal behavior, and conservation.”

Lydia M. Hopper, coeditor of "Chimpanzees in Context" and "Chimpanzee Memoirs"

“A fascinating narrative of chimpanzee behavior and ecology in an unusual habitat—the hot savanna—written by the world’s leading researcher on this topic. Pruetz interweaves her pioneering studies with detail from her own personal journey for a compelling, fun read.”

Jessica M. Rothman, coeditor of "How Primates Eat"

Table of Contents

1 Fongoli
2 The Fongoli Chimpanzee Community
3 Coping with Savanna Heat
4 Female Pan the Hunter
5 Risks on the Savanna: Snakes, Bees, and Hippos, Oh My!
6 Neighbor Apes: Chimpanzees in a Human Landscape
7 Conservation Threats and the Future of the Fongoli Chimpanzees

Acknowledgments
Further Reading
Index

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