reporter: near his stall, gurirab has discovered fresh hyena tracks. hyenas don't hunt goats, but the tracks could have been made by spotted hyenas, a more aggressive species. immanuel: if the government doesn't take care of the hyenas, we have no choicewe have to shoot them. that's the plan. reporter: when he was a cattle herder, phineas kasaona also killed hyenas and lions. today, he protects them. he's a ranger and member of the anabeb community reserve. since the 1990's, farmers like kasoana have joined neighbors to create their own nature reserves, which now cover about one-fih of namibia's landmass. last night, elephants raided a neighbor's vegetable patch. so for the next few nights, kasaona will stand guard. despite the problems they cause, the farmers still want to protect the animals. phineas: things have changed. back in the day, if a hyena took one of your animals, you hunted it down and killed it. today we live in a new world with laws that protect wild animals. and if we take care of them, we can even live from them. so we should try to l