Common Oak vs koala

Quercus robur compared with Phascolarctos cinereus

Key Differences

Common Oak is Least Concern while koala is Vulnerable.
Common Oak is autotroph while koala is herbivore.
Common Oak lives longer (1000 years vs 15 years).

Taxonomic Classification

Rank	Common Oak	koala
Kingdom	Plantae (نباتات)	Animalia (حيوانات)
Phylum	Magnoliophyta (كاسيات البذور)	Chordata (حبليات)
Class	Magnoliopsida (ماغنولانية)	Mammalia (ثدييات)
Order	Fagales (بلوطيات)	Diprotodontia (ثنائيات الأسنان الأمامية)
Family	Fagaceae (Beech Family)	Phascolarctidae (Koalas)
Genus	Quercus (Oaks)	Phascolarctos (Koalas)
Species	Quercus robur	Phascolarctos cinereus

Conservation Status

Common Oak

LC — Least Concern

Trend: Stable →

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Common Oak	koala
Diet	Autotroph	Herbivore
Average Lifespan	1000 years	15 years
Average Length	25.0 m	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Common Oak

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Widely distributed across Africa (Lesotho, South Africa), Asia (Armenia, India), Europe (8 countries), North America (Canada, United States), Oceania and the Pacific (Australia, New Zealand), and South America (4 countries).

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.

Common Oak

One of Europe's most important and widespread deciduous trees, the pedunculate oak can live over 1,000 years, reach 40 meters, and support the greatest biodiversity of any European tree species — over 2,300 species of insects, fungi, lichens, mosses, and birds directly depend on mature oaks. Found across Europe to western Asia in temperate forests, its hard, durable wood has been foundational to shipbuilding, architecture, and barrel making throughout history.

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.