>>20748392
In small numbers, the hiroha hive is dumb. The females have to spend their efforts on directing the males and doing other menial tasks for the hive, but as the numbers of the hirohas grow, new intelligence of the whole hive emerges. With increased numbers, more females are free from maintaining the hive and guiding the males, as individual female can effectively direct dozen or so males. The remaining females are able to plan ahead with each other, forming think tanks in which due to their combined smarts they can solve exponentially harder problems than they could alone. These think tanks lead the hives, and the larger the hive, the smarter it seems to be.
The hirohas don't have queens, the amount of males compared to females is 50/50. The females however often conduct selective breeding on both themselves and the males, allowing the males and females with desired traits to breed.
Some hives have also formed symbiotic relationships with other roha species, such as the electric cave rohas that they use like guard dogs.