Bancroft's numbfish vs koala

Narcine bancroftii compared with Phascolarctos cinereus

Key Differences

Bancroft's numbfish is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	Bancroft's numbfish	koala
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Torpediniformes (electric ray)	Diprotodontia (Marsupials)
Family	Narcinidae	Phascolarctidae (Koalas)
Genus	Narcine	Phascolarctos (Koalas)
Species	Narcine bancroftii	Phascolarctos cinereus

Evolutionary Relationship

Bancroft's numbfish and koala share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

Bancroft's numbfish

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Bancroft's numbfish	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Bancroft's numbfish

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Venezuela.

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.

Bancroft's numbfish

The Bancroft's numbfish (Narcine bancroftii) is a species in the genus Narcine. It is currently classified as Least Concern on the IUCN Red List. Native to South America, inhabiting ecosystems characteristic of the region.

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.