Aside from their dark color, the most obvious feature of fly legs is their hariness. This includes the
coarse hairs which are easily visible at low power (or through a magnifying glass), and much finer hairs
which are barely visible even at 400X. The fly's feet, like those of most insects, have hooks. They also
have sticky pads which contain the fly's taste buds. As a fly walks on something it is also tasting it.
A fly cannot fly upside down but it can throw its front legs above its head and then flip the rest of its
body over. This is the secret of how flies land on cielings, a subject that resulted in much
speculation in the past.