Hamilton's Pharmacopeia: The Sapo Diaries (2009)

Hamilton Morris heads to the heart of the Brazilian Amazon to investigate a traditional drug extracted from the screen secretions of a jungle frog.

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"In the Amazon rain forest, there lives a very special frog called the Phyllomedusa bicolor, otherwise known as the Sapo. Traditionally, the Mayoruna tribe uses this frog’s gooey secretions to gain superpowers."

Read the diaries here: https://www.vice.com/en/article/avjgje/the-sapo-diaries-872-v16n5