🧬 Biological Classification (Kingdom to Species)Pteromys momonga
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Rodentia
Family
Sciuridae
Genus
Pteromys
Species
Pteromys momonga
Japanese Flying Squirrel (Pteromys momonga)📸 Photo

Photo: Public domain · Public domain · Wikimedia Commons Source

Mammalia🌿 Herbivore

Japanese Flying Squirrel

Pteromys momonga (Japanese Flying Squirrel · ニホンモモンガ)

🛡️ Conservation Status (IUCN Red List)LC (Least Concern)
DDData Deficient
LCLeast Concern
NTNear Threatened
VUVulnerable
ENEndangered
CRCritically End.
EWExtinct in Wild
EXExtinct
Geological Era
Extant
Diet
Herbivore
Length · Height
12~22.8cm · No data
Mass · Top Speed
No data · No data
Habitat & Fossil Locality
Boreal evergreen coniferous forests, building nests of moss and lichens where branches meet the trunks of pine and spruce trees

💡 Everyday Comparisons for Size, Mass & Speed

  • 💡 Its maximum head-and-body length of 22.8 cm is slightly longer than the short side of an A4 sheet of paper (21 cm) (Comparison).
  • 💡 Animal Diversity Web notes that flying squirrels around the world have been traded as pets and used for their fur.

Reference standards: coach bus ~12 m, mid-size car ~4.9 m, compact car ~1 t, basketball hoop 3.05 m, credit card 8.56 cm.

#일본하늘다람쥐#Pteromys momonga

📖 1. Overview

The Japanese Flying Squirrel is a small flying squirrel that glides between trees at night in evergreen forests, blending in with tree bark so well that it is hard to spot.

🦴 2. Anatomy & Morphology

Its back is silvery to buffy gray, its belly is buffy white, and its gliding membrane extends from the ankles to the wrists. There is no membrane between the hind legs and the base of the tail.

🔍 3. Ecology & Behavior

Strictly nocturnal and silent in flight, it eats nuts, pine seeds, tree buds and bark, and fruits. It usually gives birth to 1–5 young (averaging 2–3) in May and sometimes produces a second litter in June–July.

🇰🇷 4. Connection to Korea

No direct record connecting this species to Korea has been found.

📚 Sources & References

Recorded dimensions are widely cited representative estimates from public literature and may vary by study or specimen.

🔗 Related & Comparable Species

DATA & LICENSE

📚 Data & Image Sources and Licenses

Full Citation Principles →
① Photos: Wikimedia Commons

Every photo's author and license is verified via the Wikimedia Commons API (PD, CC0, CC BY, CC BY-SA) and displayed with full attribution and source links.

② Summaries: Wikipedia

Wikipedia summary excerpts on detail pages are licensed under CC BY-SA 4.0 and linked to the original article.

③ Measurements & IUCN Status

Length, mass, and speed are representative estimates from published literature. Conservation status follows IUCN Red List categories (iucnredlist.org).

④ Silhouettes & Scale Diagrams

Silhouettes on the size comparison stage use open-licensed PhyloPic illustrations and custom body diagrams drawn at an exact 1m = 1m scale.

Expert review: looking for reviewers · compiled by quoting official (English) sources

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