Social collaboration produces such benefits as more effective food acquisition, better protection against predators, better care of young,

I just ran over your phone with my car. —Oh, snap!

[H]e takes the opportunity of sauntering up to my dressing-room, where he plays with the children, picks up my thread-paper, insists upon bringing me new music, and on reading to me some novel or poem, with which he is generally furnished.

They gathered soberly in the farthest recess of the ward and gossiped about him in malicious, offended undertones, rebelling against his presence as a ghastly imposition and resenting him malevolently for the nauseating truth of which he was bright reminder.