Amazonian Marsh Rat vs Celacanto

Holochilus sciureus compared with Latimeria chalumnae

Key Differences

• Amazonian Marsh Rat is Least Concern while Celacanto is Critically Endangered.

Taxonomic Classification

Rank	Amazonian Marsh Rat	Celacanto
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Coelacanthi (Coelacanthi)
Order	Rodentia (Rodents)	Coelacanthiformes (Coelacanthimorpha)
Family	Cricetidae	Latimeriidae
Genus	Holochilus	Latimeria
Species	Holochilus sciureus	Latimeria chalumnae

Evolutionary Relationship

Amazonian Marsh Rat and Celacanto share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Amazonian Marsh Rat

LC — Least Concern

Celacanto

CR — Critically Endangered

Population: ~500

Trend: Decreasing ↓

Physical Characteristics

Attribute	Amazonian Marsh Rat	Celacanto
Diet	—	Carnivore
Average Lifespan	—	100 years
Average Length	—	1.8 m
Average Weight	—	80.0 kg

Habitat & Geographic Range

Amazonian Marsh Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Celacanto

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.

Amazonian Marsh Rat

The Amazonian Marsh Rat (Holochilus sciureus) is a species in the genus Holochilus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Celacanto

Un fósil viviente considerado extinto durante 65 millones de años hasta su redescubrimiento frente a Sudáfrica en 1938, los celacantos pueden alcanzar 2 metros y 90 kg. Pertenecen a un antiguo linaje de aletas lobuladas más relacionado con los tetrápodos que con los peces de aletas radiales, lo que los hace científicamente invaluables para comprender la evolución de los vertebrados. Encontrados en hábitats de arrecifes rocosos profundos del Océano Índico, son nocturnos y experimentan fertilización interna, dando a luz crías completamente formadas. En Peligro Crítico.