Bay-shark vs Hotson’s Brush-tailed Mouse

Carcharhinus obscurus compared with Calomyscus hotsoni

Key Differences

• Bay-shark is Endangered while Hotson’s Brush-tailed Mouse is Least Concern.

Taxonomic Classification

Rank	Bay-shark	Hotson’s Brush-tailed Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (Mammals)
Order	Carcharhiniformes (Ground Sharks)	Rodentia (Rodents)
Family	Carcharhinidae	Calomyscidae
Genus	Carcharhinus	Calomyscus
Species	Carcharhinus obscurus	Calomyscus hotsoni

Evolutionary Relationship

Bay-shark and Hotson’s Brush-tailed Mouse share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bay-shark

EN — Endangered

Hotson’s Brush-tailed Mouse

LC — Least Concern

Physical Characteristics

Attribute	Bay-shark	Hotson’s Brush-tailed Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bay-shark

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

Distributed across Chile, Taiwan, and Venezuela. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Hotson’s Brush-tailed Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Bay-shark

The Bay-shark (Carcharhinus obscurus) is a species in the genus Carcharhinus. It is currently classified as Endangered on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.