I should also add, it isn’t just about reintroducing species, but more fundamentally that it’s a complex system and that nature knows better than us, we can’t micro-manage it, but that we just need to give it space and a helping nudge to reverse some of the detrimental impact we’ve had.
Although for an example of reintroducing what they call a keystone species and the knock on affects it can have (or trophic cascades), see the wolf reintroduction to Yellowstone park and the extent of impact. I will say that some of the re-introductions aren’t without their controversy, and needs to be done in partnership with local communities.
