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
What a Terrible World, What a Beautiful World of "Make You Better", stating "The band has never lacked the musical bona fides to write a great anthem." The album debuted at No. 7 on the "Billboard" 200 albums chart on its release, selling around 50,000 copies in the United States in its first week. It also debuted at No. 2 on "Billboard"'s Top Rock Albums, and No. 1 on the Folk Albums chart. The album has sold 123,000 copies in the United States as of October 2015. All songs written by Colin Meloy. According to the liner notes of "What a Terrible World, What a Beautiful World". What