koala vs Porcupinefish

Phascolarctos cinereus compared with Diodon holocanthus

Key Differences

• koala is Vulnerable while Porcupinefish is Least Concern.
• koala is herbivore while Porcupinefish is omnivore.
• koala is 20.0x heavier than Porcupinefish.
• koala lives longer (15 years vs 10 years).

Taxonomic Classification

Rank	koala	Porcupinefish
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class	Mammalia (млекопитающие)	Actinopterygii (Ray-finned Fish)
Order	Diprotodontia (двурезцовые сумчатые)	Perciformes (Окунеобразные)
Family	Phascolarctidae (Koalas)	Pomacentridae (Clownfish & Damselfish)
Genus	Phascolarctos (Koalas)	Amphiprion (Clownfish)
Species	Phascolarctos cinereus	Diodon holocanthus

Evolutionary Relationship

koala and Porcupinefish share a common ancestor at the Phylum level: Chordata. (хордовые)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Porcupinefish

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	koala	Porcupinefish
Diet	Herbivore	Omnivore
Average Lifespan	15 years	10 years
Average Length	75 cm	30 cm
Average Weight	10.0 kg	500 g

Habitat & Geographic 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.

Porcupinefish

Habitat

Typically found in a wide range of habitat types.

Range

Distributed across Australia, Bahamas, Japan, and Mexico.

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.

Porcupinefish

The porcupinefish can inflate its body by swallowing water, erecting its spines as a defense mechanism.

Shared Countries

Both species can be found in 1 countries:

🇦🇺 Australia