Indo-Pacific Bottlenose Dolphin vs Koala

Tursiops aduncus compared with Phascolarctos cinereus

Key Differences

• Indo-Pacific Bottlenose Dolphin is Near Threatened while Koala is Vulnerable.

Taxonomic Classification

Rank	Indo-Pacific Bottlenose Dolphin	Koala
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class same	Mammalia (Säugetiere)	Mammalia (Säugetiere)
Order	Cetacea (Whales & Dolphins)	Diprotodontia (Marsupials)
Family	Delphinidae (Oceanic Dolphins)	Phascolarctidae (Koalas)
Genus	Tursiops (Bottlenose Dolphins)	Phascolarctos (Koalas)
Species	Tursiops aduncus	Phascolarctos cinereus

Evolutionary Relationship

Indo-Pacific Bottlenose Dolphin and Koala share a common ancestor at the Class level: Mammalia. (Säugetiere)

Conservation Status

Indo-Pacific Bottlenose Dolphin

NT — Near Threatened

Koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Indo-Pacific Bottlenose Dolphin	Koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Indo-Pacific Bottlenose Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Taiwan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

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.