Facial Mimicry and Play: A Comparative Study in Chimpanzees and Gorillas
Palagi, E., Norscia, I., Pressi, S., Cordoni, G.
· 2014
★ NIFPlay Rating: 8
Rating Scale
10 Rigorous play-specific science
6–9 General biological science
5 Sound play research (uncontrolled)
1–4 Less rigorous / indirect
0 Indirect but high value
Comparative study examining rapid facial mimicry during play in chimpanzees and gorillas, demonstrating species differences in the use of facial signals to coordinate playful interactions.
