I was watching a group of dogs playing. They love running back and forth together. Two dogs split off from the pack and walked together to the edge of the field, away from the other dogs, near were we were standing. They turned to face the pack, not wanting to turn their back on them when vulnerable, squat in unison, and both went pee.
They must have communicated with each other before leaving the group. I’m going to go to the bathroom. Wait I’ll come with you....
It was amazing to see how similar dogs are to us. Not surprising that the action would be genetically instilled.