Why are fairyflies so small?
Fairy flies can be so small because they mooch off other insects' eggs, this is one of the reasons why they need to be small, then after that, they don't need to eat as they will die in only a few days. Information can be found on the &quot;how do they manage to be so small&quot; section of this PDF: https://www.cell.com/current-biology/pdf/S0960-9822(18)31343-5.pdf