User:Ehallard1/Animal testing on rodents

Intro-
In the U.S., the numbers of rats and mice used are not reported, but estimates range from around 11 million to approximately 100 million. In 2000. Since the start of public animal testing it has been steadily decreasing. Since the 1950's going from 90% dropping to 57% in 2013, since then it has greatly declined greatly. The Federal Research Division, Library of Congress, published the results of an analysis of its Rats/Mice/and Birds Database

Rats-
Rats are the most similar animal to humans, obviously not identical but a lot of similarities. Because of this when it comes to a new drug discovery there are different side effects that they don't see in rats. But because they can't just send a new drug out to be sold when they are created and because they have to be tested, and because they can't just use a robot they go to a rat first. When trying to cure the chemosynthetic liver and testing medicines you would have to use over 1,000 rats and 100 dogs.