... Talk and Other Reflections on Language Acquisition (Tucson, AZ, 1997), pp. 15-16. 14 David Premack, 'Language in Chimpanzee?', Science. 172 (21 May 1971), pp. 808-22. 15 E. S. Savage-Rumbaugh, 'Language Acquisition in a Nonhuman Species: 1 ...