koala vs Porcupinefish

Phascolarctos cinereus compared with Diodon holocanthus

Key Differences

koala is Vulnerable while Porcupinefish is Least Concern.
koala is herbivore while Porcupinefish is omnivore.
koala is 20.0x heavier than Porcupinefish.
koala lives longer (15 years vs 10 years).

Taxonomic Classification

Rank	koala	Porcupinefish
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Mammalia (哺乳類)	Actinopterygii (Ray-finned Fish)
Order	Diprotodontia (カンガルー目)	Perciformes (ペルカ目)
Family	Phascolarctidae (Koalas)	Pomacentridae (Clownfish & Damselfish)
Genus	Phascolarctos (Koalas)	Amphiprion (Clownfish)
Species	Phascolarctos cinereus	Diodon holocanthus

Evolutionary Relationship

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

表示 Phylum: Chordata

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Porcupinefish

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	koala	Porcupinefish
Diet	Herbivore	Omnivore
Average Lifespan	15 years	10 years
Average Length	75 cm	30 cm
Average Weight	10.0 kg	500 g

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.

Porcupinefish

Habitat

Typically found in a wide range of habitat types.

Range

Distributed across Australia, Bahamas, Japan, and Mexico.

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。