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Protobird" is an informal term that has been used by some paleontologists when discussing animals that, while technically classified as non-avian dinosaurs, possess many features normally associated with birds. All protobirds are extinct. Zhou and Farlow (2001), for example, used the term "protobird" for primitive members of the clade Avialae.
The WAIR hypothesis for the origin of flight is a version of the "cursorial model" of the evolution of avian flight, in which birds' wings originated from forelimb modifications that provided downforce, enabling the proto-birds to run up extremely steep slopes such as the trunks of trees.
Protopteryx is an extinct bird and possibly the basalmost enantiornithean, from the Cretaceous period. [1] The type species is P. fengningensis. [2] It was first discovered in the Sichakou Member of the Yixian Formation or Huajiying Formation of Hebei Province, northern China, [3] dating from 131 Ma ago. [4]
Newcomer conceived Joust as a "flying game" with cooperative two-player gameplay, but he did not wish to emulate the popular space theme of previous successful flying games like Asteroids and Defender. To that end, he made a list of things that could fly: machines, animals, and fictional characters.
The WAIR hypothesis, a version of the "cursorial model" of the evolution of avian flight, in which birds' wings originated from forelimb modifications that provided downforce, enabling the proto-birds to run up extremely steep slopes such as the trunks of trees, was prompted by observation of young chukar chicks, and proposes that wings ...
Birds evolved from certain feathered theropod dinosaurs, and there is no real dividing line between birds and non-avian dinosaurs except that some of the former survived the Cretaceous–Paleogene extinction event while the latter did not. For the purposes of this article, a 'bird' is considered to be any member of the clade Avialae. [1]
Ohshima later decided that the character should resemble an angel and fly like a bird. [28] In the context of the game, Nights is a part of every human's subconsciousness, and so was purposely designed to be neither male nor female. [27] Nights' personality is intended to be a "a mirror of the child's personality." [29]
Flappy Bird is a 2013 casual mobile game developed by Vietnamese video game artist and programmer Dong Nguyen (Vietnamese: Nguyễn Hà Đông), under his game development company .Gears. [1] The game is a side-scroller where the player controls a bird, Faby, attempting to fly between columns of green pipes without hitting them. The player's ...