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The dyeing poison dart frog (Dendrobates tinctorius), also known as the cobalt poison frog, tinc (a nickname given by those in the hobby of keeping dart frogs), is a species of poison dart frog. It is among the most variably colored and largest species of poison dart frogs, typically reaching snout–vent lengths of about 50 mm (2.0 in). It is distributed in the eastern portion of the Guiana Shield, including parts of French Guiana, Guyana, Suriname, and Brazil. These types of frogs usually like to stay in the ground as it is easier to catch prey. They tend to also stay in bodies of water like rivers or climb trees. Because of this they mostly inhabit near the Amazon Rainforest. To mate they have special rituals and leave their tadpoles in freshwater.
The dyeing poison dart frog exists in discrete patches of the eastern Guiana Shield, being found at altitudes up to 600 m (2,000 ft). It is found in regions of tropical primary rainforests, but is associated with areas with canopy gaps. It is mostly found in upland areas, for example in hills or at the base of mountains, but populations are also present at sea level. Erosion of the highlands has contributed to creating isolate populations. A study shows that Dendrobates tinctorius tadpoles can survive in pools having a high level of KH, vertical height of 15 mi (79,000 ft) and salinity up to 955 ppm.
