Alston s Cotton Rat vs Common Seal

Sigmodon alstoni compared with Phoca vitulina

Key Differences

Alston s Cotton Rat is Least Concern while Common Seal is Near Threatened.

Taxonomic Classification

Rank	Alston s Cotton Rat	Common Seal
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Rodentia (Rodents)	Pinnipedia (Seals & Sea Lions)
Family	Cricetidae	Phocidae (True Seals)
Genus	Sigmodon	Phoca (Harbor Seals)
Species	Sigmodon alstoni	Phoca vitulina

Evolutionary Relationship

Alston s Cotton Rat and Common Seal share a common ancestor at the Class level: Mammalia. (Mammals)

View Class: Mammalia

Conservation Status

Alston s Cotton Rat

LC — Least Concern

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Physical Characteristics

Attribute	Alston s Cotton Rat	Common Seal
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	1.7 m
Average Weight	—	80.0 kg

Habitat & Geographic Range

Alston s Cotton Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Common Seal

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (7 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Alston s Cotton Rat

The Alston s Cotton Rat (Sigmodon alstoni) is a species in the genus Sigmodon. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems. Distributed across Colombia and Venezuela.

Common Seal

The most widely distributed pinniped, harbor seals inhabit temperate and subarctic coastal waters of both the North Atlantic and North Pacific. Adults reach up to 130 kg and spend roughly equal time at sea hunting fish, squid, and crustaceans and hauling out on beaches or rocks to rest. Their large, expressive eyes are adapted for underwater vision in low light. Harbor seals are a critical food source for orcas, sharks, and polar bears.