As a few others have pointed out, animal welfare is one. As you point out, disease is annother. And another is the instabilities that can arise by introducing a

As a few others have pointed out, animal welfare is one. As you point out, disease is annother. And another is the instabilities that can arise by introducing a new species to an ecosystem. Do we really have an understanding of where the mammoth fit into the food chain? How it fit into its environment? I’d expect the answer is a resounding “no” because we don’t even fully understand this dynamic for plants and animals that live today.