کرگدن‌ها و فیل‌ها می‌توانند مشکلات بزرگی را در صورت معرفی مجدد بد ایجاد کنند - در اینجا نحوه درست کردن آن آورده شده است.

Rhinos and elephants can cause huge problems if reintroduced badly—here's how to get it right

Moving large animals around is a seductive idea in conservation. If there are plenty of animals in one place and too few in another, moving some between the two seems an obvious solution. Sometimes it is. But with animals as large, mobile and socially complicated as elephants and rhinos, the move itself can turn out to be the straightforward part.