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Japanese giant flying squirrel

Petaurista leucogenys

Conservation status IUCN: Least concern· LC
Japanese giant flying squirrel (Petaurista leucogenys)
Photograph from Wikimedia Commons · File page on Commons

Where the name comes from

Petaurista was in Greek the circus acrobat, the one who launched himself from the petauron, the springboard used in Roman shows to send men flying through the air. Leucogenys adds “white cheeks”, from leukós and génys, the jaw. The Japanese name, musasabi, is an old word of uncertain origin that already appears in the chronicles of the Nara period.

Facts

Group
Mammals · Mammalia
Order
Rodents
Habitat
Mature temperate forest, woodland around temples
Range
Japan: Honshū, Shikoku, Kyūshū
Size
27–49 cm of body, tail nearly as long, 700–1,500 g
Diet
Leaves, buds, seeds, bark, fruit
Lifespan
15 years

Characteristics

  • 01

    It routinely glides over a hundred metres, with measured records past a hundred and sixty.

  • 02

    It lives on leaves, a rare diet for a rodent and possible only with an enormous caecum.

  • 03

    It nests in cavities and often in the roof spaces of temples.

What sets it apart

It is one of the few Japanese wild animals whose favoured habitat is the groves of shrines. The chinju no mori, the sacred stands left intact around Shintō temples even inside cities, keep the old hollow trees the musasabi needs and which productive forests no longer have. Anyone hoping to see one in the evening, in Japan, does not go to a national park: they go to a shrine and wait for sunset.

Next species

Japanese dwarf flying squirrel

Pteromys momonga