Anything that falls into a four-kilometre stretch of a river in the central Peruvian Amazon dies within seconds, because the water reaches temperatures of up to 100 degrees Celsius, despite the river sitting more than 700 kilometres from the nearest active volcano and in a region of the planet with no known magmatic activity.

The river runs through the Mayantuyacu region of central Peru, in the Province of Puerto Inca in Huánuco State, on the eastern flank of the Andes where the foothills give way to the Amazon basin. The Asháninka people who have lived along its banks for centuries call it Shanay-timpishka, which translates from their language as [...] The post Anything that falls into a four-kilometre stretch of a river in the central Peruvian Amazon dies within seconds, because the water reaches temperatures of