Rhinoceros Iguana vs Spiny-tailed iguana
How does the Rhinoceros Iguana compare to the Spiny-tailed iguana? They are both members of the Iguanidae 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
- Cyclura cornuta
- Ctenosaura pectinata
- Classification
- Reptile
- Reptile
- Family
- Iguanidae
- Iguanidae
- Habitat
- Dry forest and scrubland
- Dry forests, rocky areas, and scrublands
- Diet
- Herbivore
- Omnivore
- Conservation status
- Vulnerable
- Least Concern
- Lifespan
- 15-20 years in the wild, up to 25 years in captivity
- 10-25 years
- Weight
- 4.5–9 kg (10–20 lbs)
- 0.5–2.0 kg
Rhinoceros Iguana vs Spiny-tailed iguana: who would win?

Rhinoceros Iguana
4.5–9 kg (10–20 lbs)

Spiny-tailed iguana
0.5–2.0 kg
Rhinoceros Iguana wins high confidence
Rhinoceros Iguana is substantially heavier (4.5–9 kg (10–20 lbs) vs 0.5–2.0 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 Iguanidae family.
Differences
- Habitat: Dry forest and scrubland vs Dry forests, rocky areas, and scrublands.
- Diet: herbivore vs omnivore.
- Conservation: Vulnerable vs Least Concern.
- Weight: 4.5–9 kg (10–20 lbs) vs 0.5–2.0 kg.
Rhinoceros Iguana vs Spiny-tailed iguana: FAQ
Who would win in a fight, a Rhinoceros Iguana or a Spiny-tailed iguana?
Rhinoceros Iguana wins. Rhinoceros Iguana is substantially heavier (4.5–9 kg (10–20 lbs) vs 0.5–2.0 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 Rhinoceros Iguana and a Spiny-tailed iguana?
Rhinoceros Iguana and Spiny-tailed iguana differ in several ways — habitat: dry forest and scrubland vs dry forests, rocky areas, and scrublands. diet: herbivore vs omnivore. conservation: vulnerable vs least concern. weight: 4.5–9 kg (10–20 lbs) vs 0.5–2.0 kg.
Do Rhinoceros Iguana and Spiny-tailed iguana live in the same habitat?
No — Rhinoceros Iguana lives in dry forest and scrubland, while Spiny-tailed iguana is found in dry forests, rocky areas, and scrublands.
What do Rhinoceros Iguana and Spiny-tailed iguana eat?
Rhinoceros Iguana has a herbivore diet, while Spiny-tailed iguana has a omnivore diet.
Which is more endangered, the Rhinoceros Iguana or the Spiny-tailed iguana?
Rhinoceros Iguana is listed as Vulnerable, while Spiny-tailed iguana is listed as Least Concern.
How big are Rhinoceros Iguana and Spiny-tailed iguana?
Rhinoceros Iguana weighs around 4.5–9 kg (10–20 lbs), while Spiny-tailed iguana weighs around 0.5–2.0 kg.

Full profile
Rhinoceros Iguana

Full profile
Spiny-tailed iguana







