RSS Bot@lemmy.bestiver.seMB to Hacker News@lemmy.bestiver.seEnglish · 3 个月前Humans 40k yrs ago developed a system of conventional signswww.pnas.orgexternal-linkmessage-square1fedilinkarrow-up110file-textcross-posted to: science@mander.xyzscience@lemmy.mlarchaeology@mander.xyzlinguistics@mander.xyz
arrow-up110external-linkHumans 40k yrs ago developed a system of conventional signswww.pnas.orgRSS Bot@lemmy.bestiver.seMB to Hacker News@lemmy.bestiver.seEnglish · 3 个月前message-square1fedilinkfile-textcross-posted to: science@mander.xyzscience@lemmy.mlarchaeology@mander.xyzlinguistics@mander.xyz
