Great Hammerhead vs Yellow-billed Cacique

Sphyrna mokarran compared with Amblycercus holosericeus

Key Differences

• Great Hammerhead is Critically Endangered while Yellow-billed Cacique is Least Concern.

Taxonomic Classification

Rank	Great Hammerhead	Yellow-billed Cacique
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Aves (Birds)
Order	Carcharhiniformes (Ground Sharks)	Passeriformes (Songbirds)
Family	Sphyrnidae (Hammerhead Sharks)	Icteridae
Genus	Sphyrna (Hammerhead Sharks)	Amblycercus
Species	Sphyrna mokarran	Amblycercus holosericeus

Evolutionary Relationship

Great Hammerhead and Yellow-billed Cacique share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Great Hammerhead

CR — Critically Endangered

Trend: Decreasing ↓

Yellow-billed Cacique

LC — Least Concern

Physical Characteristics

Attribute	Great Hammerhead	Yellow-billed Cacique
Diet	Carnivore	—
Average Lifespan	40 years	—
Average Length	5.0 m	—
Average Weight	450.0 kg	—

Habitat & Geographic Range

Great Hammerhead

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 5 distinct biome types spanning the Indomalayan and Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Colombia, Taiwan, and Venezuela. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Yellow-billed Cacique

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Great Hammerhead

The largest hammerhead shark species, great hammerheads reach up to 6 meters and are found in tropical and subtropical coastal waters worldwide. Their distinctive T-shaped head (cephalofoil) dramatically increases sensory surface area for electroreception, enabling them to detect buried stingrays through sand with exceptional precision — stingrays are a preferred prey. Critically Endangered, with populations declining dramatically due to highly valued fins and bycatch mortality.

Yellow-billed Cacique

Yellow-billed Cacique (Amblycercus holosericeus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇻🇪 Venezuela