North American porcupine vs Shortnose eagle ray

Erethizon dorsatus compared with Myliobatis ridens

Key Differences

• North American porcupine is Least Concern while Shortnose eagle ray is Critically Endangered.

Taxonomic Classification

Rank	North American porcupine	Shortnose eagle ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Myliobatiformes (Myliobatiformes)
Family	Erethizontidae	Myliobatidae
Genus	Erethizon	Myliobatis
Species	Erethizon dorsatus	Myliobatis ridens

Evolutionary Relationship

North American porcupine and Shortnose eagle ray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

North American porcupine

LC — Least Concern

Shortnose eagle ray

CR — Critically Endangered

Physical Characteristics

Attribute	North American porcupine	Shortnose eagle ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

North American porcupine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in United States.

Shortnose eagle ray