Study Reveals Chimps' Rational Thinking
Researchers led by Emily M. Sanford, Jan M. Engelmann, and Hanna Schleihauf.
Tested belief revision at Ngamba Island Chimpanzee Sanctuary in Uganda.
20 chimpanzees completed five experiments.
80% of cases showed rational belief revision above chance.
Computational models confirmed rational decision-making.
Study may impact learning, child development, and AI research.
Team compares chimps with 2-4-year-olds.
Engelmann views rationality as a continuum.
Experts caution assessing internal beliefs from behavior.
1 month ago