Scansoriopterygidae scansoriopterygids had a semilunate carpal (half-moon shaped wrist bone) that allowed for bird-like folding motion in the hand. Even if powered flight was not possible, this motion could have aided maneuverability in leaping from branch to branch. The adult specimen of "Epidexipteryx" lacked preserved feathers around the forelimbs, but preserved simple feathers on the body and long, ribbon-like feathers on the tail. The tail feathers, likely used in display, consisted of a central shaft (rachis) and unbranched vane (unlike the vanes of modern feathers, which are broken up into smaller filaments or barbs). "Yi" also preserves feathers. These are notably
A Summer Bird-Cage A Summer Bird-Cage A Summer Bird-Cage is the 1963 debut novel by Margaret Drabble published by Weidenfeld & Nicolson. The title of the novel is taken from a quotation from the play "The White Devil" by John Webster: ‘"Tis just like a summer bird-cage in a garden: the birds that are without despair to get in, and the birds within despair and are in a consumption for fear they shall never get out." The novel centres on two characters who are sisters, Sarah and Louise. At the beginning of the story Sarah (who has recently graduated from Oxford University) has