koala vs Red-Necked Grebe

Phascolarctos cinereus compared with Podiceps grisegena

Key Differences

koala is Vulnerable while Red-Necked Grebe is Not Evaluated.

Taxonomic Classification

Rank	koala	Red-Necked Grebe
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum same	Chordata (حبليات)	Chordata (حبليات)
Class	Mammalia (ثدييات)	Aves (طيور)
Order	Diprotodontia (ثنائيات الأسنان الأمامية)	Podicipediformes (غطاسيات)
Family	Phascolarctidae (Koalas)	Podicipedidae
Genus	Phascolarctos (Koalas)	Podiceps
Species	Phascolarctos cinereus	Podiceps grisegena

Evolutionary Relationship

koala and Red-Necked Grebe share a common ancestor at the Phylum level: Chordata. (حبليات)

استعراض Phylum: Chordata

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Red-Necked Grebe

NE — Not Evaluated

Physical Characteristics

Attribute	koala	Red-Necked Grebe
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.

Red-Necked Grebe

Habitat

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

Range

Found across Europe (5 countries) and North America (United States).

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.

Red-Necked Grebe

Red-Necked Grebe (Podiceps grisegena) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.