Chestnut-eared Aracari vs koala

Pteroglossus castanotis compared with Phascolarctos cinereus

Key Differences

Chestnut-eared Aracari is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	Chestnut-eared Aracari	koala
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Piciformes (Piciformes)	Diprotodontia (Marsupials)
Family	Ramphastidae	Phascolarctidae (Koalas)
Genus	Pteroglossus	Phascolarctos (Koalas)
Species	Pteroglossus castanotis	Phascolarctos cinereus

Evolutionary Relationship

Chestnut-eared Aracari and koala share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

Chestnut-eared Aracari

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Chestnut-eared Aracari	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Chestnut-eared Aracari

Habitat

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

Range

Distributed across Colombia, Ecuador, and Norway.

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.

Chestnut-eared Aracari

The Chestnut-eared Aracari (Pteroglossus castanotis) is a species in the genus Pteroglossus. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

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.