koala vs Scarlet Macaw

Phascolarctos cinereus compared with Ara macao

Key Differences

• koala is Vulnerable while Scarlet Macaw is Least Concern.
• koala is 10.0x heavier than Scarlet Macaw.
• Scarlet Macaw lives longer (50 years vs 15 years).

Taxonomic Classification

Rank	koala	Scarlet Macaw
Kingdom same	Animalia (प्राणी)	Animalia (प्राणी)
Phylum same	Chordata (रज्जुकी)	Chordata (रज्जुकी)
Class	Mammalia (स्तनधारी)	Aves (पक्षी)
Order	Diprotodontia (डाएप्रोटोडोंटिया)	Psittaciformes (तोता)
Family	Phascolarctidae (Koalas)	Psittacidae (True Parrots)
Genus	Phascolarctos (Koalas)	Ara (Macaws)
Species	Phascolarctos cinereus	Ara macao

Evolutionary Relationship

koala and Scarlet Macaw share a common ancestor at the Phylum level: Chordata. (रज्जुकी)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Scarlet Macaw

LC — Least Concern

Population: ~50.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	koala	Scarlet Macaw
Diet	Herbivore	Herbivore
Average Lifespan	15 years	50 years
Average Length	75 cm	85 cm
Average Weight	10.0 kg	1.0 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.

Scarlet Macaw

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Found across Europe (5 countries) and South America (Colombia, Ecuador, Venezuela). Population trends indicate a declining trajectory in parts of its range.

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.

Scarlet Macaw

One of the most brilliantly colored birds in the Americas, scarlet macaws display vivid red, yellow, and blue plumage with wingspans reaching 1 meter. Found in humid lowland forests from Mexico to Bolivia, they are highly intelligent, long-lived — up to 75 years — and form lifelong pair bonds. They travel long distances to clay licks where they consume mineral-rich soil to detoxify seeds. Listed as Least Concern but locally threatened by habitat loss and the pet trade.