Bar-necked Rock Monitor vs Merten’s Water Monitor
How does the Bar-necked Rock Monitor compare to the Merten’s Water Monitor? They are both members of the Varanidae family. Below we put their classification, habitat, diet, size, and conservation status side by side — and settle who would win in a fight.


Side-by-side comparison
- Scientific name
- Varanus albigularis angolensis
- Varanus mertensi
- Classification
- Reptile
- Reptile
- Family
- Varanidae
- Varanidae
- Habitat
- Rocky savanna and woodland
- Freshwater rivers, billabongs, and wetlands
- Diet
- Carnivore
- Carnivore
- Conservation status
- Least Concern
- Near Threatened
- Lifespan
- 10-15 years
- 8-15 years
- Weight
- 5-17 kg
- 1.0–2.5 kg
Bar-necked Rock Monitor vs Merten’s Water Monitor: who would win?

Bar-necked Rock Monitor
5-17 kg

Merten’s Water Monitor
1.0–2.5 kg
Bar-necked Rock Monitor wins high confidence
Bar-necked Rock Monitor is substantially heavier (5-17 kg vs 1.0–2.5 kg). In a physical confrontation that size and power advantage is usually decisive. In the wild these two rarely (if ever) meet — this is a what-if based on the size and diet we have on record, not a prediction.
Similarities
- Both are reptiles.
- Both belong to the Varanidae family.
- Both have a carnivore diet.
Differences
- Habitat: Rocky savanna and woodland vs Freshwater rivers, billabongs, and wetlands.
- Conservation: Least Concern vs Near Threatened.
- Weight: 5-17 kg vs 1.0–2.5 kg.
Bar-necked Rock Monitor vs Merten’s Water Monitor: FAQ
Who would win in a fight, a Bar-necked Rock Monitor or a Merten’s Water Monitor?
Bar-necked Rock Monitor wins. Bar-necked Rock Monitor is substantially heavier (5-17 kg vs 1.0–2.5 kg). In a physical confrontation that size and power advantage is usually decisive. In the wild these two rarely (if ever) meet — this is a what-if based on the size and diet we have on record, not a prediction.
What is the difference between a Bar-necked Rock Monitor and a Merten’s Water Monitor?
Bar-necked Rock Monitor and Merten’s Water Monitor differ in several ways — habitat: rocky savanna and woodland vs freshwater rivers, billabongs, and wetlands. conservation: least concern vs near threatened. weight: 5-17 kg vs 1.0–2.5 kg.
Do Bar-necked Rock Monitor and Merten’s Water Monitor live in the same habitat?
No — Bar-necked Rock Monitor lives in rocky savanna and woodland, while Merten’s Water Monitor is found in freshwater rivers, billabongs, and wetlands.
What do Bar-necked Rock Monitor and Merten’s Water Monitor eat?
Both Bar-necked Rock Monitor and Merten’s Water Monitor have a carnivore diet.
Which is more endangered, the Bar-necked Rock Monitor or the Merten’s Water Monitor?
Bar-necked Rock Monitor is listed as Least Concern, while Merten’s Water Monitor is listed as Near Threatened.
How big are Bar-necked Rock Monitor and Merten’s Water Monitor?
Bar-necked Rock Monitor weighs around 5-17 kg, while Merten’s Water Monitor weighs around 1.0–2.5 kg.

Full profile
Bar-necked Rock Monitor

Full profile
Merten’s Water Monitor







