Atlantic Electric Ray vs koala

Tetronarce nobiliana compared with Phascolarctos cinereus

Key Differences

• Atlantic Electric Ray is Not Evaluated while koala is Vulnerable.

Taxonomic Classification

Rank	Atlantic Electric Ray	koala
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Torpediniformes (electric ray)	Diprotodontia (Marsupials)
Family	Torpedinidae	Phascolarctidae (Koalas)
Genus	Tetronarce	Phascolarctos (Koalas)
Species	Tetronarce nobiliana	Phascolarctos cinereus

Evolutionary Relationship

Atlantic Electric Ray and koala share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Atlantic Electric Ray

NE — Not Evaluated

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Atlantic Electric Ray	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Atlantic Electric Ray

Habitat

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

Range

Distributed across Denmark, Norway, and 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.

Atlantic Electric Ray

The Atlantic Electric Ray (Tetronarce nobiliana) is a species in the genus Tetronarce. Native to Europe and 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.