koala vs Saltwater Crocodile

Phascolarctos cinereus compared with Crocodylus porosus

Key Differences

• koala is Vulnerable while Saltwater Crocodile is Least Concern.
• koala is herbivore while Saltwater Crocodile is carnivore.
• Saltwater Crocodile is 100.0x heavier than koala.
• Saltwater Crocodile lives longer (70 years vs 15 years).

Taxonomic Classification

Rank	koala	Saltwater Crocodile
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)	Reptilia (爬行纲)
Order	Diprotodontia (雙門齒目)	Crocodylia (Crocodilians)
Family	Phascolarctidae (Koalas)	Crocodylidae (Crocodiles)
Genus	Phascolarctos (Koalas)	Crocodylus (True Crocodiles)
Species	Phascolarctos cinereus	Crocodylus porosus

Evolutionary Relationship

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

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Saltwater Crocodile

LC — Least Concern

Population: ~300.0K

Trend: Stable →

Physical Characteristics

Attribute	koala	Saltwater Crocodile
Diet	Herbivore	Carnivore
Average Lifespan	15 years	70 years
Average Length	75 cm	6.0 m
Average Weight	10.0 kg	1.0 t

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.

Saltwater Crocodile

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Distributed across Australia, India, Indonesia, Malaysia, and Philippines.

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。

Saltwater Crocodile

湾鳄(Crocodylus porosus)是现存最大的爬行动物，分布于印度东部至澳大利亚北部。

Shared Countries

Both species can be found in 1 countries:

🇦🇺 Australia