3000-year-old leather balls in Central Asia; climate change and extinction of key human species; Greek cave documents long span of human cultural evolution; Confederate monument in Georgia poses challenges in anti-racist era.

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New analysis shows Central Asian leather balls are 3,000 years

Climate change helped drive human cousins extinct

Finds from Theopetra Cave show changes from Paleolithic to Neolithic in Greece

How tourists shape the future of Confederate monuments