Specimens of Archaeopteryx The end of the feather has an obtuse angle of 110°, while the barbs branch off from the rachis at an angle of around 25°. The barbs branch noticeably into barbules, as in the feathers of modern birds. The base of the feather consists of plumulaceous barbs which are unconnected to one another and result in a down-like appearance. This tuft of down led Griffiths to conclude that "Archaeopteryx" might have been endothermic in that it implies the use of thermal insulation. The feather is clearly asymmetrical, which has been interpreted by many scientists to be a clear indication of
Leonard Cohen: Bird on a Wire phone call from Herb Cohen, Frank Zappa's former manager, telling him that he had located dozens of boxes labelled "Bird on a Wire." Machat had died in 1988, but his son Steven obtained and delivered all 296 film canisters to Palmer. Since the negative was not available, Palmer used the soundtrack to reconstruct the film to its original form. The film stock was in fragile condition, some disintegrating to the touch. Restoring the film required piecing together the film from 3,000 fragments. The film was then sent to Cohen, who wrote back that he was "glad the problem has been