Tatoyan, S. K., Cherkovich, G. M. 1972. The heart rate in monkeys (Baboons and Macaques) in different physiological states recorded by radiotelemetry. Folia Primatologica 17(4), 255-266.

In the presence of man the heart rate is always increased, in spite of the fact that the monkeys appear to be calm.

Year

1972