Archaeologists reconstructed how Neanderthals manufactured sticky tar from birch bark 50,000 years ago. Neanderthals may have used the tar to attach stone points to wooden spears, as shown.
© Paul Kozowyk
By Andrew CurryOct. 21, 2019 , 3:00 PM
Old-school …
50,000-year-old, tar-smeared tool shows Neanderthal smarts
