. >> reporter: along with his cofounder, south african farmer and pilot nikko jacobs, they're working around the clock to protect rhinos and other wildlife. >> despite the risk and factors, you can't stop do it. it's what we do. >> reporter: at times it looks like combat medicine. veterinarian gerard sheeper is darting rhinos from the air. he and his team must act quickly. operating on the wounded right then and there. >> that's the bullet entrance wound. all the way up here. like you see right there at the back side. >> reporter: once the rhinos are given medication to reverse the anesthesia, they need to be quick. >> get out of there, she will kill you if she turns around. >> it's frightening. >> reporter: rhino 911's advance state-of-the-art technology makes tracking people ask animals from 4,000 to 8,000 feet in the air a reality. giving them an advantage against poachers. but also putting themselves in the crosshairs. >> we were informed by people in the intel community that we should step lightly. because our names have been put on a list to be targeted. as i asked, targeted for