Japanese spurdog vs Komodo Dragon

Squalus japonicus compared with Varanus komodoensis

Taxonomic Classification

Rank	Japanese spurdog	Komodo Dragon
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Reptilia (Reptil)
Order	Squaliformes (Squaliformes)	Squamata (Lizards & Snakes)
Family	Squalidae	Varanidae (Monitor Lizards)
Genus	Squalus	Varanus (Monitor Lizards)
Species	Squalus japonicus	Varanus komodoensis

Evolutionary Relationship

Japanese spurdog and Komodo Dragon share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Japanese spurdog

EN — Endangered

Komodo Dragon

EN — Endangered

Population: ~3.5K

Trend: Stable →

Physical Characteristics

Attribute	Japanese spurdog	Komodo Dragon
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	2.6 m
Average Weight	—	70.0 kg

Habitat & Geographic Range

Japanese spurdog

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Komodo Dragon

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Indonesia. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Komodo Dragon

The Komodo dragon is the largest living lizard. It is found only on a few Indonesian islands.