Species vary more in behavioral space for activity cycles at the collective level (pink area) than at the individual level (blue area) 5/

We estimated rates of behavioral evolution across our phylogeny and infer that collective behavior evolved more rapidly than individual behavior.
4/

Colonies of ants show regular bursts of activity over time. Individual ants also have these activity cycles, and ant species differ for these individual- and colony-level activity cycles. 3/

Collective behaviors are striking, widespread, and can emerge when individuals follow simple interaction rules. How does collective behavior evolve? New paper @pnas.org led by postdoc Grant Doering www.pnas.org/doi/10.1073/... 1/

my "hot take": carefully thought out and carefully written perspectives that "create new discussions, inspire future research, and maybe stir things up a bit" ...that's all great and I'm definitely looking forward to these new articles. But actual hot takes don't belong in a leading journal.

and also this:

interesting that they make this assertion: