“Curare” is the general term for a variety of toxic substances, made from the roots, bark, stems, and leaves of any of several tropical trees, vines, and plants; it has traditionally has been used to coat blowgun darts.
To make the poison, the plant material is boiled for hours in large pots. The liquid is then strained. When it thickens, the resulting paste is stored in various types of containers, including clay pots like this one.
©AMNH/ D. Finnin