Bombus hyperboreus
... that the queen Bombus hyperboreus kills the queen of another bumblebee species and takes over its colony?
... that the queen <i id="mwCP8"><b id="mwCQA"><a href="./Bombus_hyperboreus" id="mwCQE" rel="mw:WikiLink" title="Bombus hyperboreus">Bombus hyperboreus</a></b></i> kills the queen of another <a href="./Bumblebee" id="mwCQI" rel="mw:WikiLink" title="Bumblebee">bumblebee</a> species and takes over its <a href="./Colony_(biology)" id="mwCQM" rel="mw:WikiLink" title="Colony (biology)">colony</a>?