My AP Bio kids are raising butterflies. They are supposed to be accounting for all of the biomass in the ecosystem and doing some math with it to support the idea of biomass pyramids. So far they have had fun playing with their little caterpillars and watching them form a chrysalis. Now that the little guys are all safely ensconced in their cocoons, we needed a bigger habitat for them to hang in. So, here is my prototype butterfly habitat. I think I'll try this one out and see what modifications I need to make before I go into mass production.