Humans
Mysterious ancient stones were deliberately made into spheres
Stone balls found at a site used by early humans about 1.4 million years ago didn鈥檛 become round after being used as hammers, but were intentionally knapped into spheres
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Stone balls found at a site used by early humans about 1.4 million years ago didn鈥檛 become round after being used as hammers, but were intentionally knapped into spheres
Stone tools discovered in Kenya are the oldest Oldowan-type implements found, dating back at least 2.6 million years, and they may have been made by our relative Paranthropus