-FUPPETS- has always loved scanning electron microscopes and their ability to give us a glimpse of a world so small that it is usually overlooked by everyone. The image below is the head of a fly maggot. It looks like a bizarre Muppet!


Among the various types of butterflies, swallowtails are unique in that their wing area is very large relative to their body mass. This combined with their overlapping fore wings means that their flapping frequency is comparatively low and their general wing motion severely restricted.
As a result, swallowtails' ability to actively control the aerodynamic force of their wings is limited and their body motion is a passive reaction to the simple flapping motion, and not -- as common in other types of butterfly -- an active reaction to aerodynamics. ( Science Daily )
