Who is the author of animal testing?

Claude Bernard (July 12, 1813 – February 10, 1878) was a French physiologist. He was called by I. Bernard Cohen of Harvard University, "one of the greatest of all men of science" in his ForeWord to the Dover edition (1957) of Bernard's classic on scientific method, An Introduction to the Study of Experimental Medicine (originally published in 1865). He is considered as the "Father of Physiology".