Browse Subject Areas

Click through the PLOS taxonomy to find articles in your field.

For more information about PLOS Subject Areas, click here.

< Back to Article

Precise time-matching in chimpanzee allogrooming does not occur after a short delay

Fig 2

The model used for the longitudinal regression analysis.

Consecutive or simultaneous pairs of grooming events between any given dyad {A, B} are represented in our dataset by triples (X, Y, Δ), where: X represents the time that A spent grooming B; Y represents the time that B spent grooming A and Δ represents the time that elapsed between (i) A finishing grooming B, and (ii) B starting to groom A. Within-bout grooming is recorded using negative values of Δ.

Fig 2