Great Hammerhead vs koala

Sphyrna mokarran compared with Phascolarctos cinereus

Key Differences

• Great Hammerhead is Critically Endangered while koala is Vulnerable.
• Great Hammerhead is carnivore while koala is herbivore.
• Great Hammerhead is 45.0x heavier than koala.
• Great Hammerhead lives longer (40 years vs 15 years).

Taxonomic Classification

Rank	Great Hammerhead	koala
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class	Chondrichthyes (软骨鱼纲)	Mammalia (哺乳動物)
Order	Carcharhiniformes (真鲨目)	Diprotodontia (雙門齒目)
Family	Sphyrnidae (Hammerhead Sharks)	Phascolarctidae (Koalas)
Genus	Sphyrna (Hammerhead Sharks)	Phascolarctos (Koalas)
Species	Sphyrna mokarran	Phascolarctos cinereus

Evolutionary Relationship

Great Hammerhead and koala share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

Great Hammerhead

CR — Critically Endangered

Trend: Decreasing ↓

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Great Hammerhead	koala
Diet	Carnivore	Herbivore
Average Lifespan	40 years	15 years
Average Length	5.0 m	75 cm
Average Weight	450.0 kg	10.0 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.

koala

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Found in Australia. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Great Hammerhead

大双髻鲨是最大的双髻鲨物种，体长可达6米，分布于全球热带和亚热带沿海水域。其独特的T形头部（头翼）大幅增加了感觉表面积以用于电场感应，使其能以卓越精度探测藏在沙中的魟鱼——魟鱼是其首选猎物。由于鱼翅价值高昂以及混捕死亡，种群急剧减少，被列为极度濒危物种。

koala

澳大利亚东部和东南部的标志性有袋类动物，体重最大可达15千克，为了节省低热量桉树叶食物所提供的能量，每天最多睡眠22小时。高度特化，能够处理会致大多数其他哺乳动物死亡的有毒桉树成分，拥有专门适应解毒功能的肠道微生物群。因衣原体病、栖息地开发和气候变化导致种群锐减，2022年被列为濒危物种。