Weißkopf-Seeadler vs Koala

Haliaeetus leucocephalus compared with Phascolarctos cinereus

Key Differences

• Weißkopf-Seeadler is Not Evaluated while Koala is Vulnerable.
• Weißkopf-Seeadler is carnivore while Koala is herbivore.
• Koala is 2.0x heavier than Weißkopf-Seeadler.
• Weißkopf-Seeadler lives longer (28 years vs 15 years).

Taxonomic Classification

Rank	Weißkopf-Seeadler	Koala
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Aves (Vögel)	Mammalia (Säugetiere)
Order	Accipitriformes (Greifvögel)	Diprotodontia (Marsupials)
Family	Accipitridae (Hawks & Eagles)	Phascolarctidae (Koalas)
Genus	Haliaeetus (Sea Eagles)	Phascolarctos (Koalas)
Species	Haliaeetus leucocephalus	Phascolarctos cinereus

Evolutionary Relationship

Weißkopf-Seeadler and Koala share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Weißkopf-Seeadler

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Weißkopf-Seeadler	Koala
Diet	Carnivore	Herbivore
Average Lifespan	28 years	15 years
Average Length	90 cm	75 cm
Average Weight	5.0 kg	10.0 kg

Habitat & Geographic Range

Weißkopf-Seeadler

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 10 distinct biome types spanning the Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Europe (8 countries), North America (United States), and South America (Ecuador).

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.

Weißkopf-Seeadler

The national bird of the United States and a symbol of American conservation success, bald eagles have a wingspan of up to 2.4 meters and inhabit forests and wetlands near open water across North America. Powerful aerial predators and scavengers, they specialize in fish but also take waterfowl and carrion. Nearly extinct by the 1960s due to DDT poisoning and hunting, the bald eagle recovered dramatically following pesticide bans and the Endangered Species Act.

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.