koala vs silky shark

Phascolarctos cinereus compared with Carcharhinus falciformis

Taxonomic Classification

Rank	koala	silky shark
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	Mammalia (哺乳動物)	Chondrichthyes (软骨鱼纲)
Order	Diprotodontia (雙門齒目)	Carcharhiniformes (真鲨目)
Family	Phascolarctidae (Koalas)	Carcharhinidae
Genus	Phascolarctos (Koalas)	Carcharhinus
Species	Phascolarctos cinereus	Carcharhinus falciformis

Evolutionary Relationship

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

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

silky shark

VU — Vulnerable

Physical Characteristics

Attribute	koala	silky shark
Diet	Herbivore	—
Average Lifespan	15 years	—
Average Length	75 cm	—
Average Weight	10.0 kg	—

Habitat & Geographic 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.

silky shark

Habitat

Found across multiple habitat types including temperate coniferous forests, flooded grasslands and savannas, and Mediterranean forests and woodlands, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Algeria, Taiwan, Tunisia, and Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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。