National Geographic

Encountering Deadly Spiders in The Amazon (Full Episode) | Pole to Pole with Will Smith | Nat Geo

The latest episode of Nat Geo’s "Pole to Pole with Will Smith" drops the host into the heart of the Amazon, where a scientific team led by mountaineer Carla Perez and venomologist Professor Brian Frye descends into the legendary La Cueva de los Tayos. Their mission is to catalog undiscovered, venom‑bearing creatures—spiders, scorpions, and snakes—that could provide the raw material for the next generation of medicines. The crew demonstrates how cutting‑edge field techniques are unlocking the rainforest’s hidden wealth. UV lights reveal fluorescing scorpions invisible to the naked eye, while the team “milks” tarantulas and other arthropods to collect pure venom. In one dramatic sequence, they extract a sizable drop of tarantula venom using a low‑current TENS device, underscoring the delicate balance between scientific curiosity and animal welfare. The expedition already identified at least ten potentially new species, including a massive brown tarantula not previously recorded in the region. Brian Frye’s personal narrative adds emotional depth: a survivor of multiple bites and a childhood bout with spinal meningitis, he describes his work as a way to turn “something that hurts” into healing. He notes, “Venoms are effective killers, but in low quantities they become medicines,” citing the Brazilian pit viper’s blood‑pressure drug and scorpion‑derived stroke treatments as proof points. If any of the newly collected venoms translate into therapeutics, the impact could be profound—offering novel treatments for hypertension, chronic pain, and neurological disorders. Moreover, the episode highlights how much of the Amazon’s biodiversity remains undocumented, reinforcing the urgency of conservation and continued exploration in one of Earth’s most biologically rich ecosystems.