Head to head
Desert Horned Lizard vs Flat-Tailed Horned Lizard
A desert horned lizard and a flat-tailed horned lizard share the same ant-heavy diet, sand-burying defense, and flattened camouflaged body plan, but the two differ sharply in just how much desert habitat each is actually able to call home.
| Desert Horned Lizard | Flat-Tailed Horned Lizard | |
|---|---|---|
| Scientific name | Phrynosoma platyrhinos | Phrynosoma mcallii |
| Range breadth | Broad, across the western US | Narrow, specific dune habitat only |
| Body flatness | Flattened | Even more extremely flattened |
| Tail shape | Typical horned lizard tail | Distinctively flattened tail |
| Primary defense | Sand burial and camouflage | Rapid sand burial and camouflage |
| Diet | Mainly ants | Mainly ants |
| Habitat | Desert | Sand dunes specifically |
| Conservation status | Least Concern | Near Threatened |
Desert Horned Lizard vs Flat-Tailed Horned Lizard: common questions
Which horned lizard has the narrower range?
The flat-tailed horned lizard has by far the narrower range, restricted entirely to specific sand dune habitat within the Sonoran and Colorado Desert regions, while the desert horned lizard occupies a considerably broader range of arid habitat spanning multiple desert regions across the western United States.
Do both lizards defend themselves the same way?
Both species rely on rapid sand burial and camouflage as their primary defense, along with the ability to squirt blood from their eyes as a startling last-resort tactic, though the flat-tailed horned lizard's even more extremely flattened body is specifically adapted to disappearing into the fine, loose sand of its narrow dune habitat.
Why is the flat-tailed horned lizard more at risk than the desert horned lizard?
Because the flat-tailed horned lizard is restricted to a genuinely narrow band of specific dune sand habitat, disturbances such as off-road vehicle activity or development within that limited range have an outsized impact, while the desert horned lizard's much broader distribution provides a wider buffer against localised habitat loss.