A version of this article originally appeared on Science Friday
Cervical mucus is an unsung indicator of women's health
This amazing hydrogel is also your vagina's gatekeeper, protecting you from pathogens
The upside-down jellyfish stings you with mucus grenades
Scientists call these, "Cassiomes"... but that doesn't make them any less painful
Cleaner fish learn how to steal a little mucus snack by watching adults
Fish preferred to cheat a bit when given the choice