- A South American Bushmaster (Lachesis m. muta) from the Peruvian Amazon, observed with @somuchpingle.bsky.social and friends in 2023. This is the world's largest pitviper, with the longest known specimen measuring nearly 3.65 m (12 ft) in length. In Peru, this species is known as shushúpe.Jan 29, 2026 20:37