Coelacanth vs Fat-tailed Jird

Latimeria chalumnae compared with Pachyuromys duprasi

Key Differences

• Coelacanth is Critically Endangered while Fat-tailed Jird is Least Concern.

Taxonomic Classification

Rank	Coelacanth	Fat-tailed Jird
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class	Coelacanthi (Coelacanthi)	Mammalia (lớp Thú)
Order	Coelacanthiformes (Bộ Cá vây tay)	Rodentia (Bộ Gặm nhấm)
Family	Latimeriidae	Muridae (Mice & Rats)
Genus	Latimeria	Pachyuromys
Species	Latimeria chalumnae	Pachyuromys duprasi

Evolutionary Relationship

Coelacanth and Fat-tailed Jird share a common ancestor at the Phylum level: Chordata. (động vật có dây sống)

Conservation Status

Coelacanth

CR — Critically Endangered

Population: ~500

Trend: Decreasing ↓

Fat-tailed Jird

LC — Least Concern

Physical Characteristics

Attribute	Coelacanth	Fat-tailed Jird
Diet	Carnivore	—
Average Lifespan	100 years	—
Average Length	1.8 m	—
Average Weight	80.0 kg	—

Habitat & Geographic Range

Coelacanth

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 8 distinct biome types spanning the Australasia and Afrotropic and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Comoros, Indonesia, Mozambique, and South Africa. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Fat-tailed Jird

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Coelacanth

A living fossil thought extinct for 65 million years until rediscovered off South Africa in 1938, coelacanths can reach 2 meters and 90 kg. They belong to an ancient lobe-finned lineage more closely related to tetrapods than to ray-finned fish, making them scientifically invaluable for understanding vertebrate evolution. Found in deep rocky reef habitats of the Indian Ocean, they are nocturnal and undergo internal fertilization, giving birth to fully formed live young. Critically Endangered.