Pop Japan

Just like humans, some animals have special relationship and friendship with other animals. One of the famous is the relationship between the Sika deer and the macaque monkey. The monkeys benefit from the deer by riding on the back. In return, the deer benefits from the monkey by foraging (gleaning) from the fallen fruits from the monkey's foraging activities. This results in a symbiotic or asymmetrical mutualism or commensalism. 

Tags: japan, macaque