Where rhinos are found there are also specially trained guards. Obviously they can't be with the animals all the time, but they track them and make sure they know where the groups are. In many parts of the world, conservationists tranquilize rhinos and saw off their horns. This is not painful it is like us cutting our hair or nails. Conservationists hope that if a rhino has no horn, the poachers will not kill it.