Ozzie
...that Ozzie was the first gorilla to take his own blood pressure voluntarily?
...that <b id="mwBpA"><a href="./Ozzie_(gorilla)" id="mwBpE" rel="mw:WikiLink" title="Ozzie (gorilla)">Ozzie</a></b> was the first gorilla to take his own <a href="./Blood_pressure" id="mwBpI" rel="mw:WikiLink" title="Blood pressure">blood pressure</a> voluntarily?