Blackhead worm vs koala

Aporrectodea longa compared with Phascolarctos cinereus

Key Differences

Blackhead worm is Not Evaluated while koala is Vulnerable.

Taxonomic Classification

Rank	Blackhead worm	koala
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum	Annelida (สัตว์พวกหนอนปล้อง)	Chordata (สัตว์มีแกนสันหลัง)
Class	Clitellata (Clitellata)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Crassiclitellata (Crassiclitellata)	Diprotodontia (Marsupials)
Family	Lumbricidae	Phascolarctidae (Koalas)
Genus	Aporrectodea	Phascolarctos (Koalas)
Species	Aporrectodea longa	Phascolarctos cinereus

Evolutionary Relationship

Blackhead worm and koala share a common ancestor at the Kingdom level: Animalia. (สัตว์)

ดู: Kingdom: Animalia

Conservation Status

Blackhead worm

NE — Not Evaluated

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Blackhead worm	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Blackhead worm

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

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.

Blackhead worm

The Blackhead worm (Aporrectodea longa) is a species in the genus Aporrectodea. Native to Europe and North America, inhabiting ecosystems characteristic of the region. Distributed across Belgium, Denmark, Norway, Sweden, and United States.

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.