William Erasmus Darwin
... that Charles Darwin conducted a psychological study of his son William Erasmus Darwin where he compared the child to orangutan babies?
... that <a href="./Charles_Darwin" id="mwDgU" rel="mw:WikiLink" title="Charles Darwin">Charles Darwin</a> conducted a psychological study of his son <b id="mwDgY"><a href="./William_Erasmus_Darwin" id="mwDgc" rel="mw:WikiLink" title="William Erasmus Darwin">William Erasmus Darwin</a></b> where he compared the child to <a href="./Orangutan" id="mwDgg" rel="mw:WikiLink" title="Orangutan">orangutan</a> babies?