Komodo Dragon vs Calao de Decken

Varanus komodoensis compared with Tockus deckeni

Key Differences

• Komodo Dragon is Endangered while Calao de Decken is Least Concern.

Taxonomic Classification

Rank	Komodo Dragon	Calao de Decken
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Reptilia (Reptiles)	Aves (oiseau)
Order	Squamata (Lizards & Snakes)	Bucerotiformes (Bucerotiformes)
Family	Varanidae (Monitor Lizards)	Bucerotidae
Genus	Varanus (Monitor Lizards)	Tockus
Species	Varanus komodoensis	Tockus deckeni

Evolutionary Relationship

Komodo Dragon and Calao de Decken share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Komodo Dragon

EN — Endangered

Population: ~3.5K

Trend: Stable →

Calao de Decken

LC — Least Concern

Physical Characteristics

Attribute	Komodo Dragon	Calao de Decken
Diet	Carnivore	—
Average Lifespan	30 years	—
Average Length	2.6 m	—
Average Weight	70.0 kg	—

Habitat & Geographic 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.

Calao de Decken

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found in Norway.

Komodo Dragon

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