Temperamentally the commoner groups of monkeys are thus characterized:
The rhesus monkeys of India are nervous, irritable and dangerous.
The green monkeys of Africa are sanguine, but savage and treacherous.
The langur monkeys of India are sanguine and peace-loving.
The macaques of the Far East vary from the sanguine temperament to the combative.
The gibbons vary from sanguine to combative.
The lemurs of Madagascar are sanguine, affectionate and peaceful.
Nearly all South American monkeys are sanguine, and peace-loving, and many are affectionate.
The species of the group of Carnivora are too numerous and too diversified to be treated with any approach to completeness. However, to illustrate this subject the leading species will be noticed.