The killing of Cecil the lion in Zimbabwe has shone a spotlight on Africa's big game industry and hunting in particular. A study in the journal Biological Conservation, estimates African trophy hunting is worth in excess of $200m (£130m) a year.
But related to hunting and tourism are the big game farms. In South Africa, the whole sector is worth up to $2bn a year to the country's economy, and animals can change hands at auctions for millions. The BBC's Jason Boswell went to find out more.