The Magic School Bus Season 2 Episode 5 - Butterfly and the Bog Beast Episode Title:Butterfly and the Bog Beast.Episode Description:The class needs a new mascot for their soccer team, the old mascot being so old that nobody even knows what it is anymore. Phoebe is convinced it should be the butterfly but obviously, the rest of the class doesn't agree with this. Janet (from Gets Lost in Space) shows up again and convinces the class that their mascot should be the "Bog Beast". Since nobody seems to know what a bog beast is (that's probably because they don't exist), the Friz takes the class on a trip to the swamp to find out. Somehow they learn a lot about butterflies.