Amazonian Marsh Rat vs Alequim

Holochilus sciureus compared with Carcharodon carcharias

Key Differences

• Amazonian Marsh Rat is Least Concern while Alequim is Vulnerable.

Taxonomic Classification

Rank	Amazonian Marsh Rat	Alequim
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Chondrichthyes (Cartilaginous Fish)
Order	Rodentia (Roedores)	Lamniformes (Mackerel Sharks)
Family	Cricetidae	Lamnidae (Mackerel Sharks)
Genus	Holochilus	Carcharodon (Great White Sharks)
Species	Holochilus sciureus	Carcharodon carcharias

Evolutionary Relationship

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

Conservation Status

Amazonian Marsh Rat

LC — Least Concern

Alequim

VU — Vulnerable

Population: ~3.5K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Amazonian Marsh Rat	Alequim
Diet	—	Carnivore
Average Lifespan	—	70 years
Average Length	—	5.0 m
Average Weight	—	1.1 t

Habitat & Geographic Range

Amazonian Marsh Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Alequim

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate grasslands and steppes, among 9 distinct biome types spanning the Indomalayan and Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Chile, Norway, Portugal, and Taiwan. Currently classified as Vulnerable 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.

Alequim

O tubarão-branco é o maior peixe predador da Terra, podendo atingir 6 metros de comprimento e 2.000 kg, habitando águas costeiras e oceânicas frias em todos os principais oceanos. São predadores de topo que empregam ataques de emboscada por baixo, direcionados principalmente a mamíferos marinhos, peixes de grande porte e aves marinhas. Apesar de sua terrível reputação, ataques não provocados a humanos são extremamente raros. Classificado como Vulnerável (VU), com populações em declínio devido ao corte de barbatanas, captura acidental e pesca direcionada, apesar das proteções legais vigentes em muitas jurisdições.