The last of the species, Sudan, is on a mission to save his kind through Tinder.
With only three northern white rhinoceroses left on Earth, experts plan to use stem cells to revive the species before they go extinct.
What does "wilderness" mean? Is there a reason, in all cases, to try to bring back or shore up threatened species? To what are we bringing them back? Author M.R. O'Connor asked these and other questions while looking at the humans and animals involved in pretty significant conservation stories, including that of the Northern Right Whale, a yellow toad whose habitat is under a Tanzanian waterfall, and the White Rhino.