processing fish
... that there is evidence that humans have been processing fish since the early Holocene?
... that there is evidence that humans have been <b id="mwBrU"><a href="./Fish_processing" id="mwBrY" rel="mw:WikiLink" title="Fish processing">processing fish</a></b> since the early <a href="./Holocene" id="mwBrc" rel="mw:WikiLink" title="Holocene">Holocene</a>?