What comes to mind when you first hear the term de-extinction? For me, it’s Jurassic-Park-style dinosaur tourism. Modern de-extinction research covers a variety of methods, but due to a series of technical and ethical challenges, such imaginative ideas as modern-day Velociraptor remain infeasible. Here, I'll explain some of the history of de-extinction research, the practicalities of its implementation, as well as some crucial ethical considerations.