Double-crested Cormorant vs koala

Phalacrocorax auritus compared with Phascolarctos cinereus

Key Differences

Double-crested Cormorant is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	Double-crested Cormorant	koala
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Suliformes (Suliformes)	Diprotodontia (Marsupials)
Family	Phalacrocoracidae	Phascolarctidae (Koalas)
Genus	Phalacrocorax	Phascolarctos (Koalas)
Species	Phalacrocorax auritus	Phascolarctos cinereus

Evolutionary Relationship

Double-crested Cormorant and koala share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

Double-crested Cormorant

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Double-crested Cormorant	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Double-crested Cormorant

Habitat

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

Range

Widely distributed across Europe (5 countries), North America (United States), and South America (Colombia).

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.

Double-crested Cormorant

Double-crested Cormorant (Phalacrocorax auritus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

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.