Pic of the Monolith in Vigeland Park, Oslo
Nice piece here about how certain earthworm species can use social learning and generate something like social intelligence through their interactions (although it appears that touch is essential to this). Not in a scary way of course...
And this piece (HT @socialphysicist) has some interesting speculation about how we got to be more social - the shift to daylight living creating more need for shared security.
Can't help but think of the trouble so many of the folk I've spoken to recently have accepting the truth of our fundamental social nature - of course, we CAN act independently of others but mostly we don't.