Ancient tools reveal that Neanderthals once created glue to hold their tools together, suggesting these ancient hominids were smarter than once thought.
Depiction of Neanderthal tools for hunting. For a while, experts assumed that our ancient human counterparts, the Neanderthals, were less advanced and intelligent than we were. But ais calling this long-held notion into question, reporting evidence of Neanderthals using adhesive material. That is to say, they were making glue.
. “What our study shows is that early Homo sapiens in Africa and Neanderthals in Europe had similar thought patterns.”Glue might not seem like a novel advancement. But there is a complex chemistry that goes behind attaching a stone to a stick. “We were surprised that the ochre content was more than 50 percent,” said Schmidt. “This is because air-dried bitumen can be used unaltered as an adhesive but loses its adhesive properties when such large proportions of ochre are added.”Why would Neanderthals make tools with less sticky components? The team believes that they took advantage of some nifty material properties. Bitumen in liquid form is unwieldy and hard to process into a malleable material.
Close examination of the tools themselves revealed patterns of microscopic wear and tear patterns, suggesting hominid hands used them as a handle or grip.
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