Doctors by Nature: How Ants, Apes, and Other Animals Heal Themselves

Ages before the dawn of modern medicine, wild animals were harnessing the power of nature’s pharmacy to heal themselves. In Doctors by Nature (Princeton UP, 2025), Dr. Jaap de Roode argues that we have underestimated the healing potential of nature for too long and shows how the study of self-medicating animals could impact the practice of human medicine. Drawing on illuminating interviews with leading scientists from around the globe as well as his own pioneering research on monarch butterflies, Dr. de Roode demonstrates how animals of all kinds—from ants to apes, from bees to bears, and from cats to caterpillars—use various forms of medicine to treat their own ailments and those of their relatives. We meet apes that swallow leaves to dislodge worms, sparrows that use cigarette butts to repel parasites, and bees that incorporate sticky resin into their hives to combat pathogens. 

Dr. De Roode asks whether these astonishing behaviors are learned or innate and explains why, now more than ever, we need to apply the lessons from medicating animals—it can pave the way for healthier livestock, more sustainable habitats for wild pollinators, and a host of other benefits. Doctors by Nature takes readers into a realm often thought to be the exclusive domain of humans, exploring how scientists are turning to the medical knowledge of the animal kingdom to improve agriculture, create better lives for our pets, and develop new pharmaceutical drugs.

Our guest is: Dr. Jaap de Roode, who is the Samuel Candler Dobbs Professor of Biology at Emory University, where he is director of the Infectious Diseases across Scales Training Program, which trains graduate students in interdisciplinary science to study and control infectious disease.

Our host is: Dr. Christina Gessler, who works as a developmental editor for scholars, and is the producer of the Academic Life podcast.

Playlist for listeners:

• At Every Depth: Our Growing Knowledge of Changing Oceans
• The Killer Whale Journals
• Just Like Family: How Companion Animals Joined the Household
• Bugs: A Day in the Life
• Endless Forms: The Surprising World of Wasps
• The Well-Gardened Mind and The Science Showing Why Time in Nature is Good For You
• Women in Shark Sciences

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