🧬 Biological Classification (Kingdom to Species)Andrias japonicus
Kingdom
Animalia
Phylum
Chordata
Class
Amphibia
Order
Caudata
Family
Cryptobranchidae
Genus
Andrias
Species
Andrias japonicus
Japanese Giant Salamander (Andrias japonicus)📸 Photo

Photo: Salamandra2021 · CC BY-SA 4.0 · Wikimedia Commons Source

Amphibia🥩 Carnivore

Japanese Giant Salamander

Andrias japonicus (Japanese Giant Salamander · オオサンショウウオ)

🛡️ 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
1.5m · No data
Mass · Top Speed
25kg · No data
Habitat & Fossil Locality
Cold, fast-flowing mountain streams in northern Kyushu and western Honshu, Japan (elevation 180–1,350 m)

💡 Everyday Comparisons for Size, Mass & Speed

  • 💡 A body length of 1.5 m is slightly shorter than an adult human's height (about 1.7 m) (Comparison).
  • 💡 A weight of 25 kg is 5 kg heavier than a 20 kg bag of rice (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)53

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

#일본장수도롱뇽#Andrias japonicus

📖 1. Overview

The Japanese giant salamander is a large salamander living only in northern Kyushu and western Honshu in Japan. On the IUCN Red List, it was assessed as Vulnerable (VU, 2022).

🦴 2. Anatomy & Morphology

It is a large salamander reaching a body length of about 1.5 m and a weight of up to 25 kg.

🔍 3. Ecology & Behavior

It feeds on fish, insects, crustaceans, and earthworms. Breeding usually begins in early August (month 8); after a female lays 400–500 eggs in a spawning burrow, the male guards them, and they hatch after 12–15 weeks.

🇰🇷 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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