Animals have been used throughout history to understand human physiology and to resolve scientific questions related to health and disease. Nowadays, however, both scientists and the public are pushing for better options to animal testing, and so increasing efforts are being put into developing and promoting these alternative methods. Two such initiatives are being spearheaded by the Vrije Universiteit Brussel (VUB): The Innovation Centre for 3R Alternatives (IC-3Rs) and the RE-Place project.