The island is a state-protected nature reserve for macaque monkeys.

The population of these macaque monkeys have boomed after tourists began feeding them.

Humans have a higher percentage of color blindness than macaque monkeys according to recent research.

Later Jimmy has his sunglasses stolen by a macaque monkey.

A similar division of function is found in macaque monkeys.

It is possible to see many troops of macaque monkeys around the picnic sites and in the woodland areas.

The site is also well known for its numerous macaque monkeys, which visitors feed - sometimes involuntarily.

The park itself is inhabited by a troupe of over 170 Japanese macaque monkeys.

The park is famous for its conservations of macaque monkeys.

It is inhabited by a troop of over 170 Japanese macaque monkeys.