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🧬 Biological Classification (Kingdom to Species)Sphyrna mokarran

Kingdom

Animalia

Phylum

Chordata

Class

Elasmobranchii

Order

Carcharhiniformes

Family

Sphyrnidae

Genus

Sphyrna

Species

Sphyrna mokarran

Elasmobranchii🥩 Carnivore

Great hammerhead

Sphyrna mokarran (Great hammerhead · ヒラシュモクザメ)

🛡️ Conservation Status (IUCN Red List)CR (Critically Endangered)

DDData Deficient

LCLeast Concern

NTNear Threatened

VUVulnerable

ENEndangered

CRCritically End.

EWExtinct in Wild

EXExtinct

Geological Era

Extant

Diet

Carnivore

Length · Height

3~6.1m · No data

Mass · Top Speed

350~500kg · No data

Habitat & Fossil Locality

Coral reefs, lagoons, bays, and continental shelves of tropical and subtropical seas (depths of 1–300 m, averaging around 80 m)

💡 Everyday Comparisons for Size, Mass & Speed

💡 Its maximum total length of 6.1 m is about one and a half times the length of a passenger car (about 4.5 m) (Comparison).
💡 Its maximum weight of 500 kg is the weight of 25 bags of 20 kg rice (Comparison).
💡 Its fins are used for shark-fin soup, a Chinese luxury dish, and its hide and liver oil (squalene) are also used, which has led to heavy fishing pressure (Animal Diversity Web).

Reference standards: coach bus ~12 m, mid-size car ~4.9 m, compact car ~1 t, basketball hoop 3.05 m, credit card 8.56 cm.

📊 Mass & Speed Index (0–100)

⚖️ Mass Index (Blue Whale ~190 t = 100, log scale)67

Site-computed relative index from recorded values; not a formal scientific metric.

#큰귀상어#Sphyrna mokarran

📖 1. Overview

The great hammerhead is the largest of the hammerhead sharks, hunting stingrays around continental shelves and coral reefs in warm seas.

🦴 2. Anatomy & Morphology

Its eyes sit far apart at the ends of its wide, scalloped head (cephalofoil), and its spindle-shaped body is built for speed. The dorsal fin is tall, long, and curved, and the upper jaw alone has over 30 rows of teeth. Its body color ranges from brown to green with a white belly.

🔍 3. Ecology & Behavior

It feeds on squid, octopuses, stingrays, skates, and other sharks; stingray remains were found in the stomachs of over 80% of individuals caught off the coast of Natal, South Africa. It migrates poleward in summer, and it is viviparous with litters of 13–42 pups.