Giant Oceanic Manta Ray vs koala

Manta birostris compared with Phascolarctos cinereus

Key Differences

Giant Oceanic Manta Ray is Endangered while koala is Vulnerable.
Giant Oceanic Manta Ray is omnivore while koala is herbivore.
Giant Oceanic Manta Ray is 140.0x heavier than koala.
Giant Oceanic Manta Ray lives longer (50 years vs 15 years).

Taxonomic Classification

Rank	Giant Oceanic Manta Ray	koala
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Chondrichthyes (軟骨魚綱)	Mammalia (哺乳類)
Order	Lamniformes (ネズミザメ目)	Diprotodontia (カンガルー目)
Family	Rhincodontidae (Whale Sharks)	Phascolarctidae (Koalas)
Genus	Rhincodon (Whale Sharks)	Phascolarctos (Koalas)
Species	Manta birostris	Phascolarctos cinereus

Evolutionary Relationship

Giant Oceanic Manta Ray and koala share a common ancestor at the Phylum level: Chordata. (脊索動物)

表示 Phylum: Chordata

Conservation Status

Giant Oceanic Manta Ray

EN — Endangered

Trend: Decreasing ↓

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Giant Oceanic Manta Ray	koala
Diet	Omnivore	Herbivore
Average Lifespan	50 years	15 years
Average Length	5.0 m	75 cm
Average Weight	1.4 t	10.0 kg

Habitat & Geographic Range

Giant Oceanic Manta Ray

Habitat

Found across multiple habitat types including flooded grasslands and savannas, mangrove forests and coastal wetlands, and tropical and subtropical moist broadleaf forests, among 5 distinct biome types spanning the Afrotropic and Indomalayan and Neotropic realms.

Range

Distributed across Australia, Ecuador, Maldives, Mexico, and Mozambique. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Giant Oceanic Manta Ray

オニイトマキエイ（Manta birostris）は翼幅が最大7mに達する最大のエイ種である。濾過摂食を行う動物である。

koala

オーストラリア東部・南東部を代表する有袋類で、体重は最大15kgに達し、低カロリーのユーカリの葉食から得るエネルギーを節約するために1日最大22時間を睡眠に費やす。他の哺乳類の多くを死に至らしめる有毒なユーカリ成分を処理するために高度に特化しており、解毒に特別に適応した腸内微生物叢を持つ。クラミジア感染症、生息地の伐採、気候変動により個体数が激減し、2022年に絶滅危惧種に指定された。