gray wolf vs koala

Canis lupus compared with Phascolarctos cinereus

Key Differences

• gray wolf is Critically Endangered while koala is Vulnerable.
• gray wolf is carnivore while koala is herbivore.
• gray wolf is 4.5x heavier than koala.
• koala lives longer (15 years vs 13 years).

Taxonomic Classification

Rank	gray wolf	koala
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 same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order	Carnivora (食肉目)	Diprotodontia (雙門齒目)
Family	Canidae (Dogs & Wolves)	Phascolarctidae (Koalas)
Genus	Canis (Dogs & Wolves)	Phascolarctos (Koalas)
Species	Canis lupus	Phascolarctos cinereus

Evolutionary Relationship

gray wolf and koala share a common ancestor at the Class level: Mammalia. (哺乳動物)

Conservation Status

gray wolf

CR — Critically Endangered

Population: ~300.0K

Trend: Stable →

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	gray wolf	koala
Diet	Carnivore	Herbivore
Average Lifespan	13 years	15 years
Average Length	1.6 m	75 cm
Average Weight	45.0 kg	10.0 kg

Habitat & Geographic Range

gray wolf

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, deserts and xeric shrublands, and tropical and subtropical dry broadleaf forests, among 13 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Seychelles), Asia (Japan), Europe (5 countries), North America (7 countries), Oceania and the Pacific (Marshall Islands, Vanuatu), and South America (5 countries). 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.

gray wolf

灰狼是分布最广的野生犬科动物，分布范围从北美横跨欧亚大陆，栖息于冻原、森林和草原等多种生境。高度社会化的动物，以由占优势的繁殖对领导的家族群体生活。作为关键捕食者，狼调节猎物种群并深刻影响生态系统结构，黄石公园的重引入项目对此有充分证明。曾遭到严重迫害，但目前许多地区的种群正在恢复。

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。