Human beings can have a visceral reaction to the thought of growing human kidneys or livers inside the bodies of pigs or cows.
A participant in a recent online forum on human/animal chimeras described it this way: “Unbelievable!!! . . . If there was anything that was more anti-God it is the genetic formation of chimeras which is nothing more than Frankenstein monster creation.”
Evaluating the practice
Although the idea of a chimeric animal is indeed unusual, several factors need to be considered in evaluating the practice of growing human organs within animals.