bristled river shrimp vs koala

Macrobrachium olfersii compared with Phascolarctos cinereus

Key Differences

• bristled river shrimp is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	bristled river shrimp	koala
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Arthropoda (節足動物)	Chordata (脊索動物)
Class	Malacostraca (軟甲綱)	Mammalia (哺乳類)
Order	Decapoda (十脚目)	Diprotodontia (カンガルー目)
Family	Palaemonidae	Phascolarctidae (Koalas)
Genus	Macrobrachium	Phascolarctos (Koalas)
Species	Macrobrachium olfersii	Phascolarctos cinereus

Evolutionary Relationship

bristled river shrimp and koala share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

bristled river shrimp

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	bristled river shrimp	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

bristled river shrimp

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Found in United States.

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.

bristled river shrimp

The Bristled river shrimp (Macrobrachium olfersii) is a species in the genus Macrobrachium. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine, freshwater, and terrestrial environments.

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。