Brown stingray vs koala

Neotrygon annotata compared with Phascolarctos cinereus

Key Differences

• Brown stingray is Near Threatened while koala is Vulnerable.

Taxonomic Classification

Rank	Brown stingray	koala
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class	Elasmobranchii	Mammalia (哺乳動物)
Order	Myliobatiformes (鱝目)	Diprotodontia (雙門齒目)
Family	Dasyatidae	Phascolarctidae (Koalas)
Genus	Neotrygon	Phascolarctos (Koalas)
Species	Neotrygon annotata	Phascolarctos cinereus

Evolutionary Relationship

Brown stingray and koala share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

Brown stingray

NT — Near Threatened

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Brown stingray	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Brown stingray

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.

Brown stingray

The Brown Stingray (Neotrygon annotata) is a species in the genus Neotrygon. It is currently classified as Near Threatened on the IUCN Red List. As a member of the genus Neotrygon, it shares characteristics with related species within this taxonomic group.

koala

澳大利亚东部和东南部的标志性有袋类动物，体重最大可达15千克，为了节省低热量桉树叶食物所提供的能量，每天最多睡眠22小时。高度特化，能够处理会致大多数其他哺乳动物死亡的有毒桉树成分，拥有专门适应解毒功能的肠道微生物群。因衣原体病、栖息地开发和气候变化导致种群锐减，2022年被列为濒危物种。