National Geographic : 1983 Mar
anesthetized lioness's neck muscle. As wife Conny and son Paullook on, Berry brands a blindfolded lion for future field identification(middle). Here listeningto a lion's heartbeat, park veterinarianDr. Ian Hofmeyr (bottom) has both monitored and manipulatedpark wildlife. Black rhinoceroses-thisone (above) tagged with a reflective green horn plug were once scarce within Etosha's boundariesbut have increased to about 350 through captureelsewhere and careful relocation."Our long-term goal," says Dr. Berry, "is to maintainthe greatestdiversity of speciespossible."