🧬 Biological Classification (Kingdom to Species)Proteus anguinus
Kingdom
Animalia
Phylum
Chordata
Class
Amphibia
Order
Caudata
Family
Proteidae
Genus
Proteus
Species
Proteus anguinus
Olm (Proteus anguinus)📸 Photo

Photo: Arne Hodalič · CC BY-SA 3.0 · Wikimedia Commons Source

Amphibia🥩 Carnivore

Olm

Proteus anguinus (Olm · ホライモリ)

🛡️ Conservation Status (IUCN Red List)VU (Vulnerable)
DDData Deficient
LCLeast Concern
NTNear Threatened
VUVulnerable
ENEndangered
CRCritically End.
EWExtinct in Wild
EXExtinct
Geological Era
Extant
Diet
Carnivore
Length · Height
20~30cm · No data
Mass · Top Speed
No data · No data
Habitat & Fossil Locality
Underground lakes and rivers in limestone caves of the Dinaric Alps (5–15°C, usually more than 300 m underground)

💡 Everyday Comparisons for Size, Mass & Speed

  • 💡 Its maximum body length of 30 cm is equal to the length of a 30 cm school ruler (Comparison).
  • 💡 It takes 14–15 years to become an adult, which in human terms is like reaching adulthood around the 2nd or 3rd year of middle school in Korea (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.

#동굴영원#Proteus anguinus

📖 1. Overview

The Olm is a nearly blind salamander living in caves along the Adriatic coast. It is listed as Vulnerable (VU, 2024) on the IUCN Red List.

🦴 2. Anatomy & Morphology

Its skin is pale but darkens when exposed to light, and it has 3 pink external gills. Its eyes are tiny.

🔍 3. Ecology & Behavior

A carnivore, it feeds on woodlice, small crustaceans, and insect larvae. It breeds once every 12 years on average and reaches adulthood at 14–15 years of age, with females laying and guarding an average of 35 eggs (up to 70).

🇰🇷 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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