Ages before the dawn of modern medicine, wild animals were harnessing the power of nature’s pharmacy to heal themselves. “Doctors by Nature” reveals what researchers are now learning about the medical wonders of the animal world. 

Drawing on illuminating interviews with leading scientists from around the globe as well as Jaap de Roode’s own pioneering research on monarch butterflies, he 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.