 And in every drawer are flies I didn't even know existed. Big ones, small ones, colourful ones, boring ones, and some with bizarre appendages. Look, here we've got a fly with eyes on the end of stalks. We've got one here whose mouth part is four times the length of its body. Here we go, this is the common bee fly. Arguably one of the cutest things out on the planet. Ceratopogonids, the biting midges. Their relatives are the pollinators of chocolate. This is a spider-killing fly. And her babies eat tarantulas.