Humans 40,000 y ago developed a system of conventional signs.

Proc Natl Acad Sci U S A · 2026 · PMC12956821 · PMID 41730106

Europe PMC DOI

hedged sentence

0.0200

closest p · 0.4× alpha

0.0200

boldest claim

The sentences

borderline significantP = 0.02actually significant

More precisely, the estimates for anthropomorph figurines are positive ( β = 0.29 , t = 1.95 , P = 0.05 ) and borderline significant, and those for zoomorph figurines are positive ( β = 0.23 , t = 2.4 , P = 0.02 ) and significant.

also in 11,409 other papers

Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.