Both carrion beetles and dung beetles are seriously linked to their own mite population -- each no doubt with a separate species of mite. The mites help the beetles by running around and eating fly eggs and newly-hatched fly larvae, which not only compete with beetle larvae for the food but produce ammonia that is toxic to the beetle larvae. In turn, the mites hitch a ride to the next foodsource, relying on the beetle's wings and air-sampling sensors.