### Identification The Dyeing Poison Frog is a heavyweight of the *Dendrobatidae* family, reaching a robust 50mm (2 inches). Unlike its smaller, slender cousins, *D. tinctorius* is built like a tiny tank—broad-shouldered and muscular. It is famous for its staggering polymorphism; while the "Azureus" morph is a shimmering cobalt with black ink-spots, the "Citronella" variety features a brilliant yellow cape over deep blue limbs. Look for their distinct heart-shaped toe pads, which are significantly wider in males. To distinguish it from the similar *D. auratus*, look for size and pattern: *tinctorius* is larger, and its markings tend to be more defined longitudinal stripes or solid caps rather than the swirling, marbled camo of *auratus*.
### Habitat & Range This species is a jewel of the Guiana Shield, primarily found in Suriname, French Guiana, Guyana, and northern Brazil. They are denizens of the humid lowland rainforest, but they have a peculiar affinity for "inselbergs"—isolated rocky outcrops that rise above the forest floor. You’ll find them in the deep shade of the understory, hopping through damp leaf litter or clinging to moss-covered granite boulders near primary forest streams.
### Behaviour Observing a *tinctorius* in the wild is a treat because they are remarkably bold. Being highly toxic, they don’t scurry away; they sit like colorful sentinels on fallen logs. They are strictly diurnal and highly territorial. Males engage in intense wrestling matches, standing on hind legs to pin an intruder to the moss. Most fascinating is their parental devotion: after eggs hatch on the forest floor, the male coaxes the tadpoles onto his back, carrying them high into the canopy to deposit them into the "micro-pools" found in bromeliad leaf axils.
### Diet These frogs are specialized "formicivores." They spend their days foraging for tiny ants, mites, and termites. Using a lightning-fast, sticky tongue, they "vacuum" up hundreds of insects daily. This diet is crucial; they sequester chemical compounds (alkaloids) from their prey to synthesize the potent toxins in their own skin.
### Fascinating Fact The name *tinctorius* (Latin for "dyeing") comes from an ancient legend: it was said that indigenous tribes used the frog’s skin to "tapirage" green Amazon parrots. By rubbing the frog on a plucked parrot, the new feathers would allegedly grow back bright red or yellow rather than green!