koala vs Royal Tern

Phascolarctos cinereus compared with Thalasseus maximus

Key Differences

• koala is Vulnerable while Royal Tern is Least Concern.

Taxonomic Classification

Rank	koala	Royal Tern
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum same	Chordata (حبليات)	Chordata (حبليات)
Class	Mammalia (ثدييات)	Aves (طيور)
Order	Diprotodontia (ثنائيات الأسنان الأمامية)	Charadriiformes (إفجيجيات)
Family	Phascolarctidae (Koalas)	Laridae
Genus	Phascolarctos (Koalas)	Thalasseus
Species	Phascolarctos cinereus	Thalasseus maximus

Evolutionary Relationship

koala and Royal Tern share a common ancestor at the Phylum level: Chordata. (حبليات)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Royal Tern

LC — Least Concern

Physical Characteristics

Attribute	koala	Royal Tern
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.

Royal Tern

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, Sweden, and Venezuela.

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.

Royal Tern

Royal Tern (Thalasseus maximus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.