Comment Need bile ducts! (Score 5, Informative) 129
Unfortunately, the bile ducts are an important part of what the liver does, i.e. produce bile, which we need to digest fats. Furthermore, bile is used to remove bilirubin, a was product of the liver tearing down red blood cells. An excess of bilirubin is what makes people with liver problems turn yellow. This does seem like a great step forward in growing organs however. The liver is one of the most complex organs in the body.