Come along boy and girls and other things of Iwaku, let's all share cool science things we've found out about recently. http://the-gadgeteer.com/2015/09/08...ke-the-place-of-animal-testing-in-the-future/ TL;DR Some Harvard scientists have developed a way to mimic the functions of human organs in little chips that can fit in your hand. They use human cells to populate the chips and fancy science stuff to make them behave like they do in the human body. So far they have working versions for the lungs, intestines, liver, and kidneys, and the end goal is to have a working model of the entire organ system. They hope it can eventually be used to test drugs and things on a simulation of a human body, meaning testing on animals may stop being a thing.