koala vs Guillemot de Brünnich

Phascolarctos cinereus compared with Uria lomvia

Key Differences

• koala is Vulnerable while Guillemot de Brünnich is Endangered.

Taxonomic Classification

Rank	koala	Guillemot de Brünnich
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (mammifères)	Aves (oiseau)
Order	Diprotodontia (Marsupials)	Charadriiformes (Charadriiformes)
Family	Phascolarctidae (Koalas)	Alcidae
Genus	Phascolarctos (Koalas)	Uria
Species	Phascolarctos cinereus	Uria lomvia

Evolutionary Relationship

koala and Guillemot de Brünnich share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Guillemot de Brünnich

EN — Endangered

Physical Characteristics

Attribute	koala	Guillemot de Brünnich
Diet	Herbivore	—
Average Lifespan	15 years	—
Average Length	75 cm	—
Average Weight	10.0 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.

Guillemot de Brünnich

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.