Scientists say that a series of marks carved onto a freshwater clam shell represent the earliest known engravings made by a human ancestor. The zigzag lines [probably] were carved at least 430,000 years ago by a Homo erectus, an extinct hominid with a brain only slightly smaller than those of modern humans, researchers say. read…
Scientists say that a series of marks carved onto a freshwater clam shell represent the earliest known engravings made by a human ancestor. The zigzag lines [probably] were carved at least 430,000 years ago by a Homo erectus, an extinct hominid with a brain only slightly smaller than those of modern humans, researchers say.
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