Stone tools may hint at ancestors of Homo floresiensis

Some stone tools found near a river on the Indonesian island of Sulawesi suggest that the first hominins had reached the islands by at least 1.04 million years ago. That's around the same time that the ancestors of the infamously diminutive Hobbits" may have reached the island of Flores.

Archaeologist Budianto Hakim of Indonesia's National Research and Innovation Agency and his colleagues were the ones who recently unearthed the tools from a site on Sulawesi. Although a handful of stone flakes from that island don't tell us who the ancestors of the small species were or how they reached remote islands like Flores and Luzon, the tools are one more piece in the puzzle. And this handful of stone flakes may eventually play a role in helping us understand how other hominin species conquered most of the world long before we came along.

Sometimes the deep past leaves the smallest traces. At the Calio site, a sandstone outcrop in what's now a cornfield outside the village of Ujung in southern Sulawesi, people left behind just a handful of sharp stone flakes roughly a million years ago. There are seven of them, ranging from 22 to 60 millimeters long, and they're scratched, worn, and chipped from tumbling around at the bottom of a river. But it's still clear that they were once shaped by skilled human-or at least human-like-hands that used hard stones as hammers to make sharp-edged chert flakes for cutting and scraping.

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