Currently voted the best answer. Vote for this answer. Batters. Unfortunately, it has happened. In 1920, Ray Chapman was hit in the head by a pitched ball from Carl Mays. He was struck with a pitch by Carl Mays on August 16, 1920, in a game against the New York Yankees at the Polo Grounds.
Animals are sometimes used in the testing of drugs, vaccines and other biologics, and medical devices, mainly to determine the safety of the medical product. For drugs and biologics, the focus of animal testing is on the drugâs nature, chemistry, and effects (pharmacology) and on its potential damage to the body (toxicology).
Humans and mice share nearly 90 percent of human DNA. This is important because mice have been used in laboratories as experimental animals for research into human disease processes for years. Mice are currently used in genetic research to test gene replacement, and gene therapy because they have similar gene types to those of humans and will have similar reactions to diseases and disease processes.