Brazilian Blind Electric Ray vs koala

Benthobatis kreffti compared with Phascolarctos cinereus

Taxonomic Classification

Rank	Brazilian Blind Electric Ray	koala
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class	Elasmobranchii	Mammalia (lớp Thú)
Order	Torpediniformes (Bộ Cá đuối điện)	Diprotodontia (Thú hai răng trước)
Family	Narcinidae	Phascolarctidae (Koalas)
Genus	Benthobatis	Phascolarctos (Koalas)
Species	Benthobatis kreffti	Phascolarctos cinereus

Evolutionary Relationship

Brazilian Blind Electric Ray and koala share a common ancestor at the Phylum level: Chordata. (động vật có dây sống)

Conservation Status

Brazilian Blind Electric Ray

VU — Vulnerable

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Brazilian Blind Electric Ray

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.

Brazilian Blind Electric Ray

The Brazilian Blind Electric Ray (Benthobatis kreffti) is a species in the genus Benthobatis. It is currently classified as Vulnerable on the IUCN Red List.

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.