Technological advancement.
Rock shaping: 2/2 (Brought forward by Society teachings)
Basic armor: 1/2 (Idea given by Society teachings)

The brothers watched with great interest as the wooden one sat down and carved into the large rock with a smaller, sharp one, tilting their heads in curiosity as the rock was shaped. The two quickly ran over and grabbed a large rock and brought out their tools made out of sharp rocks, imitating the creature's movements and work, slowly hollowing out the rock as well.

The surrounding hounds looked on with confusion, unsure of what they were doing.

"If they... And if we learn, we... Can make these for the head, we should be able to make something that protects the rest of the body as well, for hunting."

"And protecting ourselves against those trying to take our territory."