Amphibian
The poison arrow frog
Dendrobates tinctorius
The dyeing poison arrow frog, Dendrobates tinctorius, is an amphibian species and one of the most well-known species of poison arrow frogs.
Anecdote
The Amerindian tribes would rub the skin of young parrots with this mucus. The normally green feathers would then grow bright red. The tribes would then adorn themselves with red feathers. It was this that gave the frog the name of dyeing "tinctorius" (to dye) poison arrow frog.