The tiny mites that have sex on our faces have a problem
https://www.bbc.com/news/newsbeat-61894186
"At night, the 0.3mm long organisms leave the pores to find a new skin follicle, meet a partner and mate.
But a new study has found the mites could be facing a problem as their DNA is eroding, meaning they are close to extinction."
From the Good News / Bad News dept
Human Follicular Mites: Ectoparasites Becoming Symbionts
https://academic.oup.com/mbe/article/39/6/msac125/6604544
"We propose that Demodex folliculorum (Acari) represents a transitional stage from a host-injuring obligate parasite to an obligate symbiont."