Hira-shumokuzame vs koala

Sphyrna mokarran compared with Phascolarctos cinereus

Key Differences

Hira-shumokuzame is Critically Endangered while koala is Vulnerable.
Hira-shumokuzame is carnivore while koala is herbivore.
Hira-shumokuzame is 45.0x heavier than koala.
Hira-shumokuzame lives longer (40 years vs 15 years).

Taxonomic Classification

Rank	Hira-shumokuzame	koala
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Chondrichthyes (軟骨魚綱)	Mammalia (哺乳類)
Order	Carcharhiniformes (メジロザメ目)	Diprotodontia (カンガルー目)
Family	Sphyrnidae (Hammerhead Sharks)	Phascolarctidae (Koalas)
Genus	Sphyrna (Hammerhead Sharks)	Phascolarctos (Koalas)
Species	Sphyrna mokarran	Phascolarctos cinereus

Evolutionary Relationship

Hira-shumokuzame and koala share a common ancestor at the Phylum level: Chordata. (脊索動物)

表示 Phylum: Chordata

Conservation Status

Hira-shumokuzame

CR — Critically Endangered

Trend: Decreasing ↓

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Hira-shumokuzame	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

Hira-shumokuzame

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.

Hira-shumokuzame

最大のシュモクザメ種であるオオシュモクザメは最大6メートルに達し、世界中の熱帯および亜熱帯の沿岸海域に生息します。T字型の特徴的な頭部（セファロフォイル）は電気受容のための感覚表面積を著しく増大させ、砂の中に潜むアカエイを卓越した精度で探知することを可能にしています。アカエイは好物の餌です。高価値のヒレと混獲死亡により個体群が劇的に減少し、絶滅危惧IA類に分類されています。

koala

オーストラリア東部・南東部を代表する有袋類で、体重は最大15kgに達し、低カロリーのユーカリの葉食から得るエネルギーを節約するために1日最大22時間を睡眠に費やす。他の哺乳類の多くを死に至らしめる有毒なユーカリ成分を処理するために高度に特化しており、解毒に特別に適応した腸内微生物叢を持つ。クラミジア感染症、生息地の伐採、気候変動により個体数が激減し、2022年に絶滅危惧種に指定された。