Asian Openbill vs koala

Anastomus oscitans compared with Phascolarctos cinereus

Key Differences

Asian Openbill is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	Asian Openbill	koala
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Ciconiiformes (Ciconiiformes)	Diprotodontia (Marsupials)
Family	Ciconiidae	Phascolarctidae (Koalas)
Genus	Anastomus	Phascolarctos (Koalas)
Species	Anastomus oscitans	Phascolarctos cinereus

Evolutionary Relationship

Asian Openbill and koala share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

Asian Openbill

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Asian Openbill	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Asian Openbill

Habitat

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

Range

Found in 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.

Asian Openbill

The Asian Openbill (Anastomus oscitans) is a species in the genus Anastomus. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments. Found in Norway.

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.