What is Propolis?
[[Image:Propolis smola.jpg|thumb|Propolis]] '''Propolis''' ''{{unicode|προ}}'' „for“ y ''{{unicode|πόλις}}'' „city“ is a [[wax]]-like resinous substance collected by honey [[bee]]s from tree buds (e.g. poplar) or other plant-related sources and used as cement and to seal cracks or open spaces in the beehive. It can also kill [[bacteria]]. {{science-stub}} [[Category:Bees]]