🧬 Biological Classification (Kingdom to Species)Rhea pennata
Kingdom
Animalia
Phylum
Chordata
Class
Aves
Order
Rheiformes
Family
Rheidae
Genus
Rhea
Species
Rhea pennata
Lesser Rhea (Rhea pennata)📸 Photo
Aves🌿 Herbivore

Lesser Rhea

Rhea pennata (Lesser Rhea · ダーウィンレア)

🛡️ 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
Herbivore
Length · Height
No data · 0.93~1m
Mass · Top Speed
15~25kg · 60km/h
Habitat & Fossil Locality
High puna plateaus of southern Peru and northern Chile, shrub grasslands of southern Chile and Argentina, and the Patagonian steppe

💡 Everyday Comparisons for Size, Mass & Speed

  • 💡 Its weight of 25 kg is about one and a half 20 kg bags of rice, and its top speed of 60 km/h is faster than a typical city road speed limit of 50 km/h (Comparison).
  • 💡 In South America, its feathers, meat, and skin are used, with the hides also made into rugs, and it helps ranches by walking alongside cattle and eating spiny burrs tangled in sheep wool (Animal Diversity Web).

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)50
⚡ Speed Index (400 km/h = 100)15

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

#작은레아#Rhea pennata

📖 1. Overview

The Lesser Rhea is an ostrich-like flightless South American bird. It is the smaller of the two species in the rhea family and lives in open grasslands and high plateaus.

🦴 2. Anatomy & Morphology

Its smooth, soft brown feathers have white tips, and its relatively large wings are used to change direction while running. It has three toes on each foot and a claw at the tip of each wing.

🔍 3. Ecology & Behavior

It feeds mainly on plant matter such as roots, fruits, seeds, and leaves, along with small amounts of insects and small vertebrates. The male gathers eggs from several females into one nest, incubates them, and cares for the chicks.

🇰🇷 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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