An exciting archaeological find by Bob Dewar [1] and colleagues suggests the presence of hunter-gatherers on Madagascar around 4000 years ago, which essentially doubles the length of the history of Madagascar’s human settlement. Their discovery, published in PNAS [2], suggests four thousand years of people living, burning, cultivating, shaping, transforming, and developing the island’s environment, instead of around two thousand [3]. From a pyrogeography perspective, Dewar and colleagues make an important point towards the end of their paper: Read the rest of this entry »