🪐 View in 3D Galaxy 📏 View on 3D Scale Stage

🧬 Biological Classification (Kingdom to Species)Pteromys volans

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Rodentia

Family

Sciuridae

Genus

Pteromys

Species

Pteromys volans

Mammalia🌿 Herbivore

Siberian Flying Squirrel

Pteromys volans (Siberian Flying Squirrel · タイリクモモンガ)

🛡️ Conservation Status (IUCN Red List)LC (Least Concern)

DDData Deficient

LCLeast Concern

NTNear Threatened

VUVulnerable

ENEndangered

CRCritically End.

EWExtinct in Wild

EXExtinct

🇰🇷 Class II endangered wildlife (Korea) (subspecies Pteromys volans aluco) · Natural Monument (Korea) «Siberian Flying Squirrel»

Geological Era

Extant

Diet

Herbivore

Length · Height

12~22.8cm · No data

Mass · Top Speed

130g · No data

Habitat & Fossil Locality

Taiga and forests, especially forests with aspen, birch, spruce, and Korean pine where old hollow trees are abundant

💡 Everyday Comparisons for Size, Mass & Speed

💡 Its average weight of 130 g is just over the weight of two eggs (Comparison).
💡 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).
💡 Because it is a protected species designated as a Natural Monument (Korea), it should only be observed with the eyes if encountered in the forest.

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.

📊 Mass & Speed Index (0–100)

⚖️ Mass Index (Blue Whale ~190 t = 100, log scale)26

Site-computed relative index from recorded values; not a formal scientific metric.

#하늘다람쥐#Pteromys volans

📖 1. Overview

The Siberian Flying Squirrel is a small rodent living in forests from Siberia to Northeast Asia that spreads the skin membrane between its forelegs and hindlegs to glide from tree to tree.

🦴 2. Anatomy & Morphology

It has a gliding membrane (patagium) between its forelegs and hindlegs, large dark eyes, and a flat tail covered in short hair. Its fur is long and soft, and its belly remains white year-round.

🔍 3. Ecology & Behavior

A nocturnal animal active from about 30 minutes to 1 hour after sunset until dawn, it eats grass, young twigs, fruits, and seeds in summer, and nuts, catkins, and pine cones in winter. It nests in tree hollows or among branches, and several individuals may gather in a single tree.

🇰🇷 4. Connection to Korea

In Korea, the subspecies Pteromys volans aluco is designated as Class II endangered wildlife (Korea), and "Haneuldaramjwi" (Korean name) was designated as a Natural Monument (Korea) on November 16, 1982.