Bonnet hammerhead vs Chalrm Hua-kon-yai

Sphyrna tiburo compared with Sphyrna mokarran

Key Differences

• Bonnet hammerhead is Endangered while Chalrm Hua-kon-yai is Critically Endangered.

Taxonomic Classification

Rank	Bonnet hammerhead	Chalrm Hua-kon-yai
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Chondrichthyes (ปลากระดูกอ่อน)	Chondrichthyes (ปลากระดูกอ่อน)
Order same	Carcharhiniformes (อันดับปลาฉลามครีบดำ)	Carcharhiniformes (อันดับปลาฉลามครีบดำ)
Family same	Sphyrnidae (Hammerhead Sharks)	Sphyrnidae (Hammerhead Sharks)
Genus same	Sphyrna (Hammerhead Sharks)	Sphyrna (Hammerhead Sharks)
Species	Sphyrna tiburo	Sphyrna mokarran

Evolutionary Relationship

Bonnet hammerhead and Chalrm Hua-kon-yai share a common ancestor at the Genus level: Sphyrna. (Hammerhead Sharks)

Conservation Status

Bonnet hammerhead

EN — Endangered

Chalrm Hua-kon-yai

CR — Critically Endangered

Trend: Decreasing ↓

Physical Characteristics

Attribute	Bonnet hammerhead	Chalrm Hua-kon-yai
Diet	—	Carnivore
Average Lifespan	—	40 years
Average Length	—	5.0 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Bonnet hammerhead

Habitat

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

Chalrm Hua-kon-yai

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.

Bonnet hammerhead

The Bonnet hammerhead (Sphyrna tiburo) is a species in the genus Sphyrna. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Chalrm Hua-kon-yai

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.