koala vs Nile Crocodile

Phascolarctos cinereus compared with Crocodylus niloticus

Key Differences

koala is Vulnerable while Nile Crocodile is Least Concern.
koala is herbivore while Nile Crocodile is carnivore.
Nile Crocodile is 75.0x heavier than koala.
Nile Crocodile lives longer (70 years vs 15 years).

Taxonomic Classification

Rank	koala	Nile Crocodile
Kingdom same	Animalia (प्राणी)	Animalia (प्राणी)
Phylum same	Chordata (रज्जुकी)	Chordata (रज्जुकी)
Class	Mammalia (स्तनधारी)	Reptilia (सरीसृप)
Order	Diprotodontia (डाएप्रोटोडोंटिया)	Crocodylia (Crocodilians)
Family	Phascolarctidae (Koalas)	Crocodylidae (Crocodiles)
Genus	Phascolarctos (Koalas)	Crocodylus (True Crocodiles)
Species	Phascolarctos cinereus	Crocodylus niloticus

Evolutionary Relationship

koala and Nile Crocodile share a common ancestor at the Phylum level: Chordata. (रज्जुकी)

View Phylum: Chordata

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Nile Crocodile

LC — Least Concern

Population: ~500.0K

Trend: Stable →

Physical Characteristics

Attribute	koala	Nile Crocodile
Diet	Herbivore	Carnivore
Average Lifespan	15 years	70 years
Average Length	75 cm	5.0 m
Average Weight	10.0 kg	750.0 kg

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.

Nile Crocodile

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Distributed across Egypt, Kenya, Madagascar, South Africa, and Tanzania.

koala

Iconic marsupial of eastern and southeastern Australia, koalas weigh up to 15 kg and spend up to 22 hours daily sleeping to conserve energy from their low-calorie eucalyptus leaf diet. Highly specialized to process toxic eucalyptus compounds that would kill most other mammals, they have gut microbiomes uniquely adapted for detoxification. Listed as Endangered in 2022, with populations decimated by chlamydia disease, habitat clearing, and climate change.