Ellsworth Wareham after the first such procedure was performed. Leonard Bailey, the surgeon who transplanted a baboon heart into a baby at Loma Linda University in 1984, trained under Wareham as a medical student in the late 1960s. The child, Baby Fae, was born prematurely with hypoplastic left heart syndrome and Bailey’s surgery made international headlines. Loma Linda, Wareham's home town has been described as USA's only Blue Zone, an area where the longevity is appreciably higher than the national average and one of the four places in the world to have a substantial proportion of humans live past 100 years. The
Baboon Guinea baboon is and weighs only , while the largest chacma baboon can be and weigh . Five species of "Papio" are commonly recognized, although there is some disagreement about whether they are really full species or subspecies. They are "P. ursinus" (chacma baboon, found in southern Africa), "P. papio" (western, red, or Guinea baboon, found in the far western Africa), "P. hamadryas" (hamadryas baboon, found in the Horn of Africa and southwestern Arabia), "P. anubis" (olive baboon, found in the north-central African savanna) and "P. cynocephalus" (yellow baboon, found in south-central and eastern Africa). Many authors distinguish "P. hamadryas"