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🧬 Biological Classification (Kingdom to Species)Cnephaeus serotinus

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Chiroptera

Family

Vespertilionidae

Genus

Cnephaeus

Species

Cnephaeus serotinus

Mammalia🥩 Carnivore

Eurasian Serotine

Cnephaeus serotinus (Eurasian Serotine · Eurasian Serotine)

🛡️ 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

Carnivore

Length · Height

6~6.7cm · No data

Mass · Top Speed

13~20g · No data

Habitat & Fossil Locality

Roofs of houses, hospitals, and schools, and crevices between tiled eaves and walls

💡 Everyday Comparisons for Size, Mass & Speed

💡 It roosts in colonies of dozens to hundreds in the roofs and tiled eaves of houses, hospitals, and schools.
💡 Its maximum weight of 20 g is about the weight of four Korean 100-won coins (around 5.4 g each) (Comparison).
💡 Its maximum body length of 6.7 cm is about two and a half times the diameter of a Korean 500-won coin (around 2.65 cm) (Comparison).

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)14

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

#문둥이박쥐#Cnephaeus serotinus

📖 1. Overview

The Eurasian Serotine is a relatively large bat that roosts in roof crevices of human buildings and is distributed across Europe and Asia.

🦴 2. Anatomy & Morphology

Its ears are relatively large with rounded tips, its tail is much shorter than its body length, and the calcar is well developed. The upperparts are slightly glossy yellowish dark brown, while the underparts are paler.

🔍 3. Ecology & Behavior

In summer, it emerges from its roost about 1 hour after sunset to catch moths, stoneflies, and beetles. It gives birth to a single pup in June or July, with a maximum recorded lifespan of 19 years and 3 months and movements of up to 330 km.

🇰🇷 4. Connection to Korea

In the National List of Species of Korea, its domestic distribution is listed as nationwide (excluding islands). However, collection records in South Korea are extremely rare, with observations of about 50 individuals under roof tiles in Pyeongyang and records from Daejeon, Seungju, Masan, Changwon, Haman, and Inje.