Ros, sometimes known as Sky Fish or Solar Entities, are a rather new entry in the field of cryptozoology. They are said to be creatures which flit about in the air at such a high speed as to not be seen by the naked eye. However, rods appear to be observational artifacts produced by rapidly flying animals. Practically all sightings of rods are based on video evidence, due to the propensity of video cameras to produce characteristic stroboscopic artifacts when imaging rapidly flying animals, especially insects, but also including birds. Their recent popularity seems to be a result of media exposure in television and in tabloids.