Dyeing dart frogThe dyeing dart frog, tinc (a nickname given by those in the hobby of keeping dart frogs), or dyeing poison frog (Dendrobates tinctorius) is a species of poison dart frog. It is among the largest species, reaching lengths of 50 mm (2.0 in). This species is distributed throughout the eastern portion of the Guiana Shield, including parts of Guyana, Suriname, Brazil, and nearly all of French Guiana. It exists in discrete patches throughout this region, being restricted to “highland” (up to 350 m (1,150 ft)) areas. While this species can be found at sea level, individuals have been collected at the base of nearby hills or mountains. The isolation of populations has presumably occurred as a result of the erosion of these highland areas and the seasonal inundation of the inter-patch areas. source