Irene Pepperberg Professions : Scientist Born : April 1, 1949 Browse All Authors Famous Quotes by Irene Pepperberg Clearly, animals know more than we think, and think a great deal more than we know. Irene Pepperberg deals animal thinking Similar Authors Bruce Ellis scientist Brian O'Leary scientist Amanda Feilding scientist Astro Teller scientist Arvid Carlsson scientist Antonie van Leeuwenhoek scientist All Authors