I’m in a six-wheeled vehicle, bumping across rough terrain, watching for wild animals. This is open low scrubland, interspersed by big messy thorn bushes. Ten of us sit silent, binoculars ready, ...

FOR THE FIRST TIME since we started rewilding, in 2000, I sensed my husband, Charlie’s, resolve beginning to waver. Letters from neighbors were reaching a crescendo of outrage. Over the nine years ...