Swedish activist Greta Thunberg is an inspiration for Samela Sateré-Mawe, but more so are her roots in Amazon indigenous culture MANAUS, Brazil, October 10 (Reuters) - Samela Sateré-Mawé, a 24-year-old biology student, has one guiding belief - if the rainforest dies so will her Amazon tribe. "Indigenous people are an extension of nature, and nature is an extension of us," said the environmental activist, who joined Greta Thunberg's Fridays for F