Eastern Fence Lizard vs Keeled Earless Lizard
How does the Eastern Fence Lizard compare to the Keeled Earless Lizard? They are both members of the Phrynosomatidae 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
- Sceloporus undulatus
- Holbrookia propinqua
- Classification
- Reptile
- Reptile
- Family
- Phrynosomatidae
- Phrynosomatidae
- Habitat
- Forests, woodlands, and field edges
- Arid and semi-arid deserts, sandy flats, and grasslands
- Diet
- Insectivore
- Insectivore
- Conservation status
- Least Concern
- Least Concern
- Lifespan
- 4-5 years
- 2-4 years
- Weight
- 10-15 grams
- 4-8 grams
Eastern Fence Lizard vs Keeled Earless Lizard: who would win?

Eastern Fence Lizard
10-15 grams

Keeled Earless Lizard
4-8 grams
Eastern Fence Lizard wins moderate confidence
Eastern Fence Lizard is substantially heavier (10-15 grams vs 4-8 grams). 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 Phrynosomatidae family.
- Both have a insectivore diet.
- Both are listed as Least Concern.
Differences
- Habitat: Forests, woodlands, and field edges vs Arid and semi-arid deserts, sandy flats, and grasslands.
- Weight: 10-15 grams vs 4-8 grams.
Eastern Fence Lizard vs Keeled Earless Lizard: FAQ
Who would win in a fight, a Eastern Fence Lizard or a Keeled Earless Lizard?
Eastern Fence Lizard wins. Eastern Fence Lizard is substantially heavier (10-15 grams vs 4-8 grams). 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 Eastern Fence Lizard and a Keeled Earless Lizard?
Eastern Fence Lizard and Keeled Earless Lizard differ in several ways — habitat: forests, woodlands, and field edges vs arid and semi-arid deserts, sandy flats, and grasslands. weight: 10-15 grams vs 4-8 grams.
Do Eastern Fence Lizard and Keeled Earless Lizard live in the same habitat?
No — Eastern Fence Lizard lives in forests, woodlands, and field edges, while Keeled Earless Lizard is found in arid and semi-arid deserts, sandy flats, and grasslands.
What do Eastern Fence Lizard and Keeled Earless Lizard eat?
Both Eastern Fence Lizard and Keeled Earless Lizard have a insectivore diet.
Which is more endangered, the Eastern Fence Lizard or the Keeled Earless Lizard?
Eastern Fence Lizard is listed as Least Concern, while Keeled Earless Lizard is listed as Least Concern.
How big are Eastern Fence Lizard and Keeled Earless Lizard?
Eastern Fence Lizard weighs around 10-15 grams, while Keeled Earless Lizard weighs around 4-8 grams.

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Eastern Fence Lizard

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Keeled Earless Lizard




