🧬 Biological Classification (Kingdom to Species)Odobenus rosmarus
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Pinnipedia
Family
Odobenidae
Genus
Odobenus
Species
Odobenus rosmarus
Walrus (Odobenus rosmarus)📸 Photo

Национальный парк Русская Арктика: северная часть архипелага Новая Земля,Новая Земля, Архангельская область

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

Mammalia🌊 Marine predator / filter feeder

Walrus

Odobenus rosmarus (Walrus · セイウチ)

🛡️ 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
Marine predator / filter feeder
Length · Height
2.7~3.6m · 1.5m
Mass · Top Speed
0.6~1.5t · 35km/h
Habitat & Fossil Locality
Coastal drift-ice zones of the Arctic Ocean

💡 Everyday Comparisons for Size, Mass & Speed

  • 📏 Length 2.7m — ~1.5× the height of a 1.75 m adult human
  • 🏢 Height 1.5m — ~0.9× the height of a 1.75 m human
  • ⚖️ Mass 600kg — ~8.6× the mass of a 70 kg adult human
  • ⚡ Speed 35km/h — ~0.9× Usain Bolt's 100 m world-record average speed (37.6 km/h)

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)70
⚡ Speed Index (400 km/h = 100)9

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

#바다코끼리#Odobenus rosmarus#기각류#북극해

📖 1. Overview

It is a giant among Arctic pinnipeds, weighing 1.5 tonnes and bearing a pair of massive tusks up to 1 m long. Its scientific name 'Odobenus' means 'tooth-walker.'

🌐 Wikipedia Summary Extract

The walrus is a large pinniped marine mammal with discontinuous distribution about the North Pole in the Arctic Ocean and subarctic seas of the Northern Hemisphere. It is the only extant species in the family Odobenidae and genus Odobenus. This species is subdivided into two subspecies: the Atlantic walrus, which lives in the Atlantic Ocean, and the Pacific walrus, which lives in the Pacific Ocean.

🦴 2. Anatomy & Morphology

It drives its long tusks into the ice to haul its heavy body onto drift ice, and uses up to 700 sensitive whiskers (vibrissae) around its mouth to locate clams in dark seafloor mud before sucking out the soft meat like a vacuum cleaner.

🔍 3. Ecology & Behavior

Thanks to its 15 cm layer of blubber and tough 4 cm-thick skin, even polar bears cannot easily attack an adult walrus.

🇰🇷 4. Connection to Korea

It is a representative species of adaptive evolution among Arctic marine mammals.

📚 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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