Why didn’t the Babyeaters develop the practice of separate pens for each family, with tribes redistributing common resources (e.g. erratic, potentially rotting, meat from hunts) among parents, and parents feeding children out of their share? Maybe their brains lacked the capacity to recognize so many distinct off-spring, but why not spray them with a pheromone? Producing vast numbers of offspring with big expensive full-size brains (which is itself implausible) makes the large numb to be destroyed immediately would impose huge metabolic costs relative to privatizing the commons and distinguishing between offspring, then adjusting clutch-size based on parental resources.
Why didn’t the Babyeaters develop the practice of separate pens for each family, with tribes redistributing common resources (e.g. erratic, potentially rotting, meat from hunts) among parents, and parents feeding children out of their share? Maybe their brains lacked the capacity to recognize so many distinct off-spring, but why not spray them with a pheromone? Producing vast numbers of offspring with big expensive full-size brains (which is itself implausible) makes the large numb to be destroyed immediately would impose huge metabolic costs relative to privatizing the commons and distinguishing between offspring, then adjusting clutch-size based on parental resources.