Vivisection is the dissection of living subjects. It was first practised on human subjects in 300 BC by Herophilus, and until 1570 criminals were vivisected at Pisa. The practise is still carried out on animals, and there is much controversy over its moral and scientific value in areas of research such as testing drugs, surgical practises and testing cosmetic products. The enforced chainsmoking by Beagle dogs led to the belief of smoking causing cancer in humans. Research Vivisection