elliptic trough shell vs koala

Spisula elliptica compared with Phascolarctos cinereus

Key Differences

• elliptic trough shell is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	elliptic trough shell	koala
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Mollusca (软体动物门)	Chordata (脊索动物门)
Class	Bivalvia (双壳纲)	Mammalia (哺乳動物)
Order	Venerida (帘蛤目)	Diprotodontia (雙門齒目)
Family	Mactridae	Phascolarctidae (Koalas)
Genus	Spisula	Phascolarctos (Koalas)
Species	Spisula elliptica	Phascolarctos cinereus

Evolutionary Relationship

elliptic trough shell and koala share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

elliptic trough shell

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	elliptic trough shell	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

elliptic trough shell

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.

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。