The Yezo sika deer is one of the many subspecies of the sika deer. The sika that inhabit the island of Hokkaido are indigenous, although it is not known whether they originated there or migrated from the main island of Japan. It is thought that they may have traveled across the strait between the islands.
Scientific name: Cervus nippon yesoensis
Higher classification: Sika deer
Rank: Subspecies
Family: Cervidae