Head to head
Imitator Salamander vs Jordan's Salamander
An imitator salamander and Jordan's salamander share the same high-elevation Smoky Mountains streams and, at a glance, the same reddish-cheeked appearance, but only one of the two backs that warning look up with an actual chemical defence, making this pair one of the clearest real-world examples of Batesian mimicry in North America.
| Imitator Salamander | Jordan's Salamander | |
|---|---|---|
| Scientific name | Desmognathus imitator | Plethodon jordani |
| Chemical defence | None of significance | Genuinely unpalatable skin secretions |
| Role in the mimicry pair | Harmless mimic | Toxic model |
| Larval stage | Aquatic larva before metamorphosis | Direct development, no aquatic larva |
| Genus | Desmognathus (dusky salamanders) | Plethodon (woodland salamanders) |
| Habitat | High-elevation forest streams | High-elevation forest |
| Range | Great Smoky Mountains region | Great Smoky Mountains region |
| Conservation status | Least Concern | Least Concern |
Imitator Salamander vs Jordan's Salamander: common questions
Which of these two salamanders is actually dangerous to eat?
Jordan's salamander is the one that carries a genuine chemical defence, producing unpalatable skin secretions that deter predators, while the imitator salamander that resembles it has no comparable toxin of its own, relying entirely on looking like Jordan's salamander to discourage predators that have already learned to avoid that appearance.
How can you tell the imitator salamander and Jordan's salamander apart?
Distinguishing the two in the field is genuinely difficult, since the imitator salamander has evolved specifically to resemble Jordan's salamander's reddish-cheeked appearance, and telling them apart reliably usually requires close examination of subtle physical differences or knowledge of which genus, Desmognathus or Plethodon, a given individual belongs to.
Why does the imitator salamander need to live so close to Jordan's salamander?
Batesian mimicry only works if predators regularly encounter the toxic model species often enough to learn and remember its warning appearance, so the imitator salamander depends on sharing the same high-elevation Smoky Mountains habitat as Jordan's salamander to keep that learned avoidance active among local predators.