"Leapfrog" play among Japanese macaques

"Producing" the tool for social play in Japanese macaques

Leapfrog in Japanese monkeys

Huddling of Japanese macaques II

Huddling of Japanese macaques I

copulation of Japanese macaques I

copulation of Japanese macaques II

Playing behaviour of Japanese macaca 4

Playing behaviour of Japanese macaca 3

Playing behaviour of Japanese macaca 2

Playing behaviour in Japanese macaca 1

Annular eclipse and the wild Japanese macaques

Bathing of Crab-eating Macaques　（Slow Motion）

The foraging behavior of Japanese macaques on carpenter bees in Yakushima Island

play

play

Adult play

Japanese monkeys playing with a block of snow

競馬遊び　HORSE RACE PLAY

Play

Japanese monkeys playing with a block of snow 2

dogs' play behavior

[Shadow Play]

Child's Play

Play at a stream