"Dendrobates tinctorius" - nicknamed tincs by those in the frog-rearing business. Despite what their name might suggest they're actually doing quite well, being wide-spread throughout Guyana, French Guyana, Suriname and Brazil. At 5 cm (about 2 in) in length, they are one of the biggest poison dart frog species, though not one of the deadliest. Still, their poison can cause pain, cramps and irritation, so they are best left alone. An interesting facet about their sexual dimorphism is that females have circular toe pads, while the males have heart-shaped ones. (It is believed males evolved them to better touch a potential mate's heart)
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