Hammerhead vs Pacific Spiny-rat

Sphyrna corona compared with Proechimys decumanus

Key Differences

• Hammerhead is Critically Endangered while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Hammerhead	Pacific Spiny-rat
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	Sphyrnidae (Hammerhead Sharks)	Echimyidae
Genus	Sphyrna (Hammerhead Sharks)	Proechimys
Species	Sphyrna corona	Proechimys decumanus

Evolutionary Relationship

Hammerhead and Pacific Spiny-rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Hammerhead

CR — Critically Endangered

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

Attribute	Hammerhead	Pacific Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hammerhead

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.