Brown Rat vs Coelacanth

Rattus norvegicus compared with Latimeria chalumnae

Key Differences

• Brown Rat is Least Concern while Coelacanth is Critically Endangered.

Taxonomic Classification

Rank	Brown Rat	Coelacanth
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Coelacanthi (Coelacanthi)
Order	Rodentia (Roedores)	Coelacanthiformes (Coelacanthiformes)
Family	Muridae (Mice & Rats)	Latimeriidae
Genus	Rattus	Latimeria
Species	Rattus norvegicus	Latimeria chalumnae

Evolutionary Relationship

Brown Rat and Coelacanth share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Brown Rat

LC — Least Concern

Coelacanth

CR — Critically Endangered

Population: ~500

Trend: Decreasing ↓

Physical Characteristics

Attribute	Brown Rat	Coelacanth
Diet	—	Carnivore
Average Lifespan	—	100 years
Average Length	—	1.8 m
Average Weight	—	80.0 kg

Habitat & Geographic Range

Brown Rat

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 10 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (11 countries), Asia (15 countries), Europe (41 countries), North America (16 countries), Oceania and the Pacific (10 countries), and South America (10 countries).

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.

Brown Rat

O rato-pardo (Rattus norvegicus) está classificado como Pouco Preocupante (LC) na Lista Vermelha da IUCN. Amplamente distribuído e abundante em sua área de ocorrência, com populações estáveis e sem preocupações de conservação imediatas.

Coelacanth

Um fóssil vivo considerado extinto durante 65 milhões de anos até ser redescoberto ao largo da África do Sul em 1938, os celacantos podem atingir 2 metros e 90 kg. Pertencem a uma linhagem ancestral de barbatanas lobadas mais relacionada com os tetrápodes do que com os peixes de barbatanas radiais, tornando-os cientificamente inestimáveis para compreender a evolução dos vertebrados. Encontrados em habitats de recifes rochosos profundos do Oceano Índico, são noturnos e sofrem fertilização interna, dando à luz crias completamente formadas. Em Perigo Crítico.

Shared Countries

Both species can be found in 1 countries:

🇿🇦 South Africa