Ryukyu Wild Boar

琉球野豬 / Ryukyu wild boar / リュウキュウイノシシ (Sus scrofa riukiuanus)
琉球野豬

Species information

Scientific name: Sus scrofa riukiuanus
Japanese name: リュウキュウイノシシ、ヤマシシ(國頭方言)
Chinese name: 琉球野豬
English name: Ryukyu wild boar
Origin: Amami Oshima, Tokunoshima, northern Okinawajima, Ishigaki, and Iriomote.

Ecology and description

Ryukyu wild boar is a subspecies of the wild boar (Sus scrofa) endemic to the Ryukyu Islands of Japan. In addition to some islands, Ryukyu wild boar is an introduced species on the Kerama Islands and Miyakojima. Some scholars, based on skeletal morphology, suggest that the populations on Ishigaki and Iriomote be classified as different subspecies.

The body size of Ryukyu wild boar is smaller than the Japanese subspecies, and it is timid in nature, not aggressively attacking humans. In Yambaru, you often see mounds of soil turned over by Ryukyu wild boar along the roadside, as they dig up the soil to feed on earthworms or small animals and the roots and stems of plants.

Field photographs taken during our tours, with observation dates

While driving, there is a chance to encounter wild boars on the road, but the likelihood is low when walking.

Ryukyu wild boar (Sus scrofa riukiuanus) Jun 7, 2023 adult large boar by the riverbank Kunigami
Jun 7, 2023, Kunigami, Adult large boar by the riverbank
Ryukyu wild boar (Sus scrofa riukiuanus) Apr 30, 2023 newly independent piglet Kunigami
Apr 30, 2023, Kunigami, Newly independent piglet
Ryukyu wild boar (Sus scrofa riukiuanus) Mar 9, 2022 three piglets Kunigami
Mar 9, 2022, Kunigami, Three piglets
Ryukyu wild boar (Sus scrofa riukiuanus) chance to see Ryukyu wild boar along the trails of Asmui Hikes
Chance to see Ryukyu wild boar along the trails of Asmui Hikes