Everyone is aware that it's an imperfect model system. We just have nothing better to go off of. Granted, it got us to where are today so it obviously has had p

Everyone is aware that it's an imperfect model system. We just have nothing better to go off of. Granted, it got us to where are today so it obviously has had practical utility, but we may have exhausted the benefits of simplistic animal models as we try tackle more complex diseases (cancer, neurodegenerative disorders, etc.).