Two different groups of macaques have been spotted in Japan mounting sika deer. The behavior could be part of a shared “culture” between the animals.

The first way to tell the difference between macaques is their size ... However, to the untrained eye all the monkeys might look the same other than their size, but they are in fact all unique ...

A February meeting could bring about the end of the trade in macaque monkeys commonly used in medical research.

Other macaque species once ranged from East Asia to northwest ... They are so stimulated by the sight of an infant that they lose all fear.” ...