Chubut Steamer Duck vs koala

Tachyeres leucocephalus compared with Phascolarctos cinereus

Taxonomic Classification

Rank	Chubut Steamer Duck	koala
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class	Aves (새)	Mammalia (포유류)
Order	Anseriformes (기러기목)	Diprotodontia (캥거루목)
Family	Anatidae	Phascolarctidae (Koalas)
Genus	Tachyeres	Phascolarctos (Koalas)
Species	Tachyeres leucocephalus	Phascolarctos cinereus

Evolutionary Relationship

Chubut Steamer Duck and koala share a common ancestor at the Phylum level: Chordata. (척삭동물)

Conservation Status

Chubut Steamer Duck

VU — Vulnerable

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Chubut Steamer Duck	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Chubut Steamer Duck

Habitat

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

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its 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.

Chubut Steamer Duck

The Chubut Steamer Duck (Tachyeres leucocephalus) is a large, flightless or near-flightless diving duck endemic to the Atlantic coast of Patagonia, Argentina, particularly in Chubut Province from which its name derives. It belongs to the genus Tachyeres, commonly known as steamer ducks due to their habit of propelling themselves across the water by flapping their short wings and paddling their large feet simultaneously, resembling a steamboat's paddle wheels. T. leucocephalus is assessed as Vulnerable by the IUCN due to its restricted range along a limited stretch of Patagonian coastline and relatively small total population. The species inhabits rocky coastlines, kelp beds, and sheltered coastal bays, feeding primarily on marine invertebrates including crustaceans, molluscs, and echinoderms obtained by diving in intertidal and subtidal zones. Like other steamer ducks, it is highly territorial, with pairs defending stretches of coastline year-round. The white-headed appearance of adult males gives the species its scientific name leucocephalus. Threats include disturbance from coastal development, oil spills, and persecution. The Chubut coastline and associated marine areas receive some conservation protection, though the species remains at risk from localized catastrophic events.

koala

호주 동부와 동남부의 상징적인 유대류로, 체중이 최대 15kg이며 저칼로리인 유칼립투스 잎 식단에서 에너지를 절약하기 위해 하루 최대 22시간을 잠으로 보낸다. 대부분의 다른 포유류를 죽일 수 있는 유독한 유칼립투스 성분을 처리하도록 고도로 특화되어, 해독에 특별히 적응된 장내 미생물총을 지닌다. 2022년 기후 변화, 서식지 개발, 클라미디아 감염으로 인한 개체수 감소로 위기종으로 지정되었다.