Here’s the plan to bring it back: First, turn dunnart cells into thylacine cells using gene-editing technology. Then use the thylacine cells to create an embryo, either in a petri dish or the womb of a living animal. Implant the embryo into a female marsupial such as a quoll, and watch the quoll give birth to a thylacine baby. When the baby is old enough to leave the quoll pouch, raise it into adulthood. Repeat and establish a healthy population, with the goal of releasing thylacines into the wild.