koala vs Rio Negro Gnatcatcher

Phascolarctos cinereus compared with Polioptila facilis

Key Differences

• koala is Vulnerable while Rio Negro Gnatcatcher is Least Concern.

Taxonomic Classification

Rank	koala	Rio Negro Gnatcatcher
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum same	Chordata (Kordalılar)	Chordata (Kordalılar)
Class	Mammalia (memeliler)	Aves (kuş)
Order	Diprotodontia (İki ön dişliler)	Passeriformes (Ötücü kuşlar)
Family	Phascolarctidae (Koalas)	Polioptilidae
Genus	Phascolarctos (Koalas)	Polioptila
Species	Phascolarctos cinereus	Polioptila facilis

Evolutionary Relationship

koala and Rio Negro Gnatcatcher share a common ancestor at the Phylum level: Chordata. (Kordalılar)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Rio Negro Gnatcatcher

LC — Least Concern

Physical Characteristics

Attribute	koala	Rio Negro Gnatcatcher
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.

Rio Negro Gnatcatcher

Habitat

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

Range

Found in Colombia.

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.