Prior to Tuchanka's discovery of large-scale weapons, I like to imagine their society was very ritual-based, with spiritual leaders guiding ceramonies for different aspects of Krogan life.
Here is the Oracle of the Maw, one such leader who is enjoying one of his clans' healing springs. Although clearly he's ready to engage in the Rite of Fertility, if he so chooses.
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You can find the timelapse of this piece attached below!