How many animals die daily because of animal testing?

There is much controversy over the use of animals for research. The practice is known as animal experimentation, animal research or in vivo testing and is conducted worldwide. Over 100 million animals are used annually for this research.

Drug testing using animals became a significant part of the drug development process. To avoid new drugs from coming on the market and causing bad reactions, Congress passed a law in 1937 requiring new drugs to be tested on animals first.