Giant rats in Qeynos aqueducts bash, kick and are social
 

I was camping the crocs in the qeynos aqueducts at level 2 and noticed that attacking the nearby large rats brought 2 giant rats running in who bashed and kicked. Attached are screenshots. I promise I didn't use Chords of Dissonance until after they showed up :)

Note that the large rats did not kick, bash, and are not social. This is for giant rats only.

I would be glad to arrange a demonstration.

and your point is?

Rats were never social IIRC.

I'll admit it's been a while, but I didn't think they kicked or bashed either.