Yuyuko yukkuris are actually semi-predators.
They never feed on their companions (yet they accept everything else as food),
but they will attract and prey on tiny yukkuris with a strange atmosphere when alone.
There are many cases where naughty kids (lol) feed them with Marichas out of interest.Photograph where a Maricha expedition squad turn into feedsMizder Bwaid!HurtzTastes so-soMunch-MunchIn truth...The little one looks like lady Yuyuko myon...!Even though yukkuri are wild creatures of high fertility and high mortality, Yuyuko yukkuri do not give birth to many children all at once; additionally, only one every eighty child is a Yuyuko.
This is the reason why Yuyuko yukkuri are in small numbers.Bearing Children