Myth: The animal is an ideal model to study human diseases.
Reality:Thinking that a rat is a human being only smaller turns out to be mental aberration and scientific fraud. Humans and animals present great anatomical and psychological differences. They do not react the same way to certain products.
An aspirin can kill a cat and cause birth malformations on mice. Penicillin kills hamsters. Arsenic has no toxic effect for monkeys and chicken. Morphine calms humans but excites cats and horses. Insulin produces malformations on chicken, rabbits, and mice.
Human cancers are quite different from animal cancers. Cancerous tumors on animals do not take 20 years to develop.
Animals do not metabolize products the same way humans do. Humans are 60 times more sensitive to thalidomide (a tranquilizer prescribed to pregnant women) than mice, 100 times more sensitive than rats, 200 times more sensitive than dogs, and 700 times more sensitive than hamsters.
When it suits them, vivisectors acknowledge that experiments on animals cannot entirely be extrapolated to humans. When they are sued because of harmful drugs (i.e thalidomide) or toxic products, vivisectors use this fundamental difference as an argument. Why continue the experiment then, if the bases of it are false? For professor and physician Pietro Croce: “The response we get from animal experimentations is never trustable, even though some coincidences sometime occur. This is why vivisection must be abolished.”