Only twenty-five years ago, the first evidence of self-medicating behaviour among animals was reported among chimpanzees. On the basis of this pioneering research, led by the American Michael Huffman, a new science was founded: "zoopharmacognosy", or the study of animal pharmacopeia. Animals are apparently able to treat themselves actively, to detect natural substances that can provide a remedy for health problems, or to prevent them. The primatologist Michael Huffman explains how he discovered that chimpanzees can heal their diseases with m...
