A charity called Rewilding Britain wants to return a large area of Scotland to how it was a thousand years ago. It wants forests and lost animals, birds and fish to return. The group aims to put back into the wild the wolf, which died out in Britain in 1680. Hunters killed them all. Other species that could return to mountains, rivers and seas include the lynx (a wild cat), beavers, sea eagles and grey whales. The charities want one-twentieth of the country to return to its natural state. The area it wants is the UK's cleanest region. It hopes this can happen by the year 2030.

Not everyone thinks the reintroduction of the wolf and lynx is a good idea. Farmers are worried that bringing back predators would cause problems. They think the animals would start killing farm animals. They also say beaver dams would increase the risk of flooding farmland, and that sea eagles would kill lambs. A Rewilding Britain spokeswoman said: "Re-wilding is really for everyone who cares about our future. Our ecosystems need us." She added that it was important to re-wild Britain for, "native forests to regenerate" and to give "seas a chance to recover from industrial fishing".