Humans can live up to 80 years or more, which means some scientists would be dead before others results will be gathered. Laboratory mice, on the other hand, only live for 2 to 3 years, giving researchers an opportunity to study effects of genetic manipulation or treatments over an entire lifetime. In some cases, they can continue to study across several generations. This is why mice and rats have been used for long-term cancer research.
Fewer animals are used in research than as food for humans
Compared to the amount of chicken, cattle, sheep and pigs that humans eat, relatively few of them are used in experimentation. With consideration to the medical progress and advancement such tests provided, it is a small …show more content…
Using rats for toxicity, for example, must not be accepted as reliable since humans are nowhere close to being 70-kilogram rats, according to Thomas Hartung, professor of evidence-based toxicology at Johns Hopkins University. This is further supported by the 2013 study in the Archives of Toxicology that states that the lack of direct comparison of human data versus that of a mouse makes the usefulness of research data