Canadian beaver vs Common Seahorse

Castor canadensis compared with Hippocampus kuda

Key Differences

• Canadian beaver is Not Evaluated while Common Seahorse is Vulnerable.
• Canadian beaver is herbivore while Common Seahorse is carnivore.
• Canadian beaver is 2500.0x heavier than Common Seahorse.
• Canadian beaver lives longer (15 years vs 5 years).

Taxonomic Classification

Rank	Canadian beaver	Common Seahorse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Actinopterygii (Ray-finned Fish)
Order	Rodentia (Rodents)	Perciformes (Perch-like Fish)
Family	Castoridae (Beavers)	Pomacentridae (Clownfish & Damselfish)
Genus	Castor (Beavers)	Amphiprion (Clownfish)
Species	Castor canadensis	Hippocampus kuda

Evolutionary Relationship

Canadian beaver and Common Seahorse share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

Physical Characteristics

Attribute	Canadian beaver	Common Seahorse
Diet	Herbivore	Carnivore
Average Lifespan	15 years	5 years
Average Length	1.0 m	17 cm
Average Weight	25.0 kg	10 g

Habitat & Geographic 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).

Common Seahorse

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

Range

Distributed across Australia, India, Indonesia, Japan, and Philippines. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Canadian beaver

The largest rodent in North America, Canadian beavers weigh up to 32 kg and are master ecosystem engineers inhabiting rivers, lakes, and wetlands across Canada and the northern United States. By felling trees and constructing dams up to hundreds of meters long, beavers create ponds that provide habitat for hundreds of species. Their lodges and canals transform entire watersheds. Once nearly hunted to extinction for their fur, beaver populations have recovered strongly.

Common Seahorse

The common seahorse is found in tropical and temperate waters. Males carry and deliver the babies.