A look at one of the world's most complex machines, capable of laughing, crying, and even reproducing itself.

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Human body / DK Vision and BBC Worldwide Americas ; director, Alex Herle ; writer, David Hanson ; narrator, Andrew Sachs (1994, 35 min.) -- Making of eyewitness / Dorling Kindersley Ltd. and BBC Lionheart Television Intl. Inc. ; written and produced by Bill Butt ; director/cameraman, Mike Kamei (1994, 25 min.) -- Discover more about DK eyewitness (2007, 2 min.).