• The Science of Sound:
  http://www.youtube.com/watch?v=_ovMh2A3P5k&feature=related
• Ben Underwood, the boy who sees using echolocation (using sound to “see”). A five-part series:
  http://www.youtube.com/watch?v=qLziFMF4DHA
• Broca’s aphasia:
  http://www.youtube.com/watch?v=f2IiMEbMnPM
• Wernicke’s aphasia:
  http://www.youtube.com/watch?v=aVhYN7NTIKU and http://www.youtube.com/watch?v=dKTdMV6cOZw
• Washoe, Koko, and the social exchange of language in non-human primates:
  http://www.youtube.com/watch?v=3V_rAY0g9DM
• Kanzi in a research session, converting human language to arbitrary symbols:
  http://www.youtube.com/watch?v=wRM7vTrIIis
   

Animations

Stunning animations of key biological phenomena have been retained from the previous edition.

› Figure 9.10
› Figure 9.19
› Figure 9.21