Baby Fae body began generating isohaemagglutinins, but a suitable donor could not be found in time. Prior to the procedure, no infant heart transplant—even with human hearts—had been successfully performed due to a lack of infant human hearts. To address this issue, Bailey had become a pioneer in the research of cross-species heart transplants, which had included "more than 150 transplants in sheep, goats, and baboons". Multiple surgeons had previously experimented with baboon heart implants, leading some to speculate even that baboons could be farmed in the future for such purposes. When asked why he had picked a baboon over a primate
Guinea baboon this animal has vocal communications apparently intended to be received and interpreted by predators. Due to its small range and the loss of its habitat, the Guinea baboon is classified as "near threatened" by the IUCN. Baboon refers to the large-bodied primates with marked sexual dimorphism and having females and young that are dependent on males for protection. Guinean baboons have a red tone to their fur, and are sometimes referred to as the red baboon. They lack hair on their hindquarters, and their faces are black with yellow-brown sideburns. Females' rumps are pink in color and males have a