The poison dart frog lives in the jungles of Equador, how was it's toxin used on AlexI Navalny?

Lurking in the soggy undergrowth of the rainforests in South America is one of earth’s most poisonous species. With its lurid, exotic patterned skin, the poison dart frog screams DANGER. So how did its deadly toxin find its way into an Siberian penal colony to be ingested by Russian president Vladimir Putin’s political nemesis, Alexi Navalny, and what does his shocking assassination two years ago tell us about the weapons the Kremlin has in its arsenal. Expert toxicologist Emeritus Professor Alistair Hay says Russia has a long history of developing and deploying biological weapons. The Greek myth of Orpheus and Eurydice is an epic tale of love and tragedy. Now performers Phil Grainger and Alexander Flanagan-Wright are putting their own spin on this ancient narrative at the Adelaide Fringe festival.