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 (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Reptilia (réptil)
Order	Diprotodontia (Marsupials)	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. (cordados)

View Phylum: Chordata

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

Icônico marsupial do leste e sudeste da Austrália, os coalas pesam até 15 kg e passam até 22 horas diárias dormindo para conservar energia de sua dieta de folhas de eucalipto, com baixo teor calórico. Altamente especializados para processar os compostos tóxicos do eucalipto que matariam a maioria dos outros mamíferos, possuem microbiomas intestinais unicamente adaptados para a destoxificação. Classificado como Em Perigo em 2022, com populações dizimadas pela doença de clamídia, desmatamento e mudanças climáticas.