packrat middens
...that ancient packrat middens (essentially, packrat nests) can provide important clues about long-term changes in climate or vegetation in an area?
...that ancient <b id="mwBVw"><a class="mw-redirect" href="./Packrat_midden" id="mwBV0" rel="mw:WikiLink" title="Packrat midden">packrat middens</a></b> (essentially, packrat nests) can provide important clues about long-term changes in <a href="./Climate" id="mwBV4" rel="mw:WikiLink" title="Climate">climate</a> or <a href="./Vegetation" id="mwBV8" rel="mw:WikiLink" title="Vegetation">vegetation</a> in an area?