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<h2 id="see-also">See also</h2> <ul><li><a href="/facts/Hockett%2527s_design_features/MjVtJn2g">Hockett's design features</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Hockett, C. F. (1960) "The origin of speech". Scientific American, 203:2. <a href="http://www.columbia.edu/~rmk7/HC/HC_Readings/Hockett.pdf" target="_blank">http://www.columbia.edu/~rmk7/HC/HC_Readings/Hockett.pdf</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> </ol>