angie genade is in charge.he's been running the rhino fund since 2008, and has brought a lot of new staff on board. and the number of animals in the sanctuary has almost doubled under her direction. angie: the situation of the rhinos has been dire for a long time. there was a short period, maybe in the 1970's, early 1980's where rhinos were pretty secure, and then the poaching spiked. the problem is, it doesn't just spike in one country, it spikes all over. reporter: poachers haven't killed any animals in the sanctuary. the rhino fund has been breeding them here for 18 years now. the first was brought in from kenya, others from various zoos. when out in the bush among the rhinos, it's important to remain quiet. walkie-talkies can make the rhinos restless. the rangers observe the animals' behavior during the day and at night, documenting where they graze, sleep, and wandnder. the data are shared with researchers and zoos all over the world. martin lokiru is more involved with the rhinos than he is with his own f