By age 4, human children met emergence criteria for all 14 tested cognitive tasks, while chimpanzees and bonobos met criteria for only 8 of 14 tasks, and intention-emulation and social learning never emerged in chimpanzees and bonobos by age 8 in a longitudinal study.
Notes on verification
Confirmed by multiple peer-reviewed sources including the original longitudinal study (Wobber et al. 2014) and related Duke University research on comparative cognitive development in children and great apes. [tier=silver indep_score=1.0 clusters=2 claim_tier=notable]
Sources
- Comparative Cognitive Development (seed:psychology_and_neuroscience)
- https://onlinelibrary.wiley.com/doi/10.1002/dev.21125 (corroboration)
- https://scholars.duke.edu/publication/954506 (corroboration)
- https://sites.duke.edu/tomasellolabduke/files/2016/09/Wobber_et_al_2014.pdf (corroboration)
- https://evolutionaryanthropology.duke.edu/sites/evolutionaryanthropology.duke.edu/files/site-images/differences-in-the-early-cognitive-development-of-children-and-great-apes.original.pdf (corroboration)