“…A heart rate for an awake adult rhesus macaque, when measured by telemetry, is 98–122 bpm [2, 12]. Others report higher ranges in awake rhesus macaques of 150–333 bpm [2, 13], which would be more in line with our observations. Thus, during both non‐irradiation and irradiation sessions, there was some apparent elevation above normal range but within the range reported by others [2, 13].…”