Bee on a rock rose

Bee on a rock rose, with pollen.

Today I learned how bees carry pollen after I took pictures of some in our front yard: it’s that yellow glob on this guy’s rear flank. I also learned (Wikipedia: Honey Bee Defense) that honey bees kill intruding wasps by “balling” them, surrounding them to overheat the wasps and deprive them of oxygen. Stingers are mostly reserved for vertebrates.