Bees can train each other to use tools
When "even" bees are intelligent enough to teach each other skills, i really marvel at the mental gymnastics/machinery that goes into convincing oneself that humans are somehow a class apart from animals, and it's totally okay to eat them after having kept them pent up in atrocious conditions.  Makes mental note to be a better vegetarian(and FWIW: i'm not being morally superior here: i believe that in reality, probably being vegan is the only morally defensible position, but the flesh being weak and all...  And in actual fact, probably even that is a tricky position: by surviving one is probably making the calculated decision (conscious or not) to put one's own survival above the cost of some other's demise.)