Pubal
... that in 2007, a rescued European bison calf dubbed Pubal grew so attached to humans in southeastern Poland that he could not be successfully reintegrated back into the wild?
... that in 2007, a rescued <a href="./European_bison" id="mwBtI" rel="mw:WikiLink" title="European bison">European bison</a> calf dubbed <b id="mwBtM"><a href="./Pubal" id="mwBtQ" rel="mw:WikiLink" title="Pubal">Pubal</a></b> grew so attached to humans in southeastern Poland that he could not be successfully reintegrated back into the wild?