Brownfish vs Canadian beaver

Actinopyga echinites compared with Castor canadensis

Key Differences

• Brownfish is Vulnerable while Canadian beaver is Not Evaluated.

Taxonomic Classification

Rank	Brownfish	Canadian beaver
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Echinodermata (棘皮动物门)	Chordata (脊索动物门)
Class	Holothuroidea (海參綱)	Mammalia (哺乳動物)
Order	Holothuriida (海參目)	Rodentia (啮齿目)
Family	Holothuriidae	Castoridae (Beavers)
Genus	Actinopyga	Castor (Beavers)
Species	Actinopyga echinites	Castor canadensis

Evolutionary Relationship

Brownfish and Canadian beaver share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

Brownfish

VU — Vulnerable

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Physical Characteristics

Attribute	Brownfish	Canadian beaver
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	1.0 m
Average Weight	—	25.0 kg

Habitat & Geographic Range

Brownfish

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Canadian beaver

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Widely distributed across Europe (15 countries), North America (United States), and South America (Argentina, Chile).

Brownfish

The Brownfish (Actinopyga echinites) is a species in the genus Actinopyga. It is currently classified as Vulnerable on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.

Canadian beaver

北美最大的啮齿动物加拿大河狸体重可达32公斤，是栖息于加拿大和美国北部河流、湖泊和湿地的杰出生态系统工程师。通过伐木和建造可达数百米的水坝形成水塘，为数百种物种提供生境。其巢穴和运河改变了整个流域。曾因毛皮贸易被猎杀至濒临灭绝，但种群已大幅恢复。