Grooming is costly signaling in the context of an induced mental state. Ritual, more than speech, is doing that toward the whole group.
@semiotechnic YES "rhythmic entrainment" almost as good as having your fur groomed ;)
3:21 PM - 3 Feb 2015
0 replies
2 retweets
3 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.