Patients find themselves on an organ transplant list quite frequently. However, we simply do not have the ability to provide organs to even 10% of the patients waiting for these transplantations. Therefore, a surge of research is being undertaken to develop methods to bioengineer human organs. Currently, the Methuselah Foundation is offering a prize reward to a research group that develops a viable liver. The liver must have the ability to be inserted into a live mammal, enable the mammal to survive without any original liver present in the body, and allow the mammal to live a normal lifestyle for 3 months.