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What does BADD stand for?

BADD stands for Birds Are Dinosaur Descendants


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The possibility that dinosaurs were the ancestors of birds was first suggested in 1868 by Thomas Henry Huxley. [123] After the work of Gerhard Heilmann in the early 20th century, the theory of birds as dinosaur descendants was abandoned in favor of the idea of their being descendants of generalized thecodonts, with the key piece of evidence being the supposed lack of clavicles in dinosaurs. [124] However, as later discoveries showed, clavicles (or a single fused wishbone, which derived from separate clavicles) were not actually absent;[44] they had been found as early as 1924 in Oviraptor, but misidentified as an interclavicle.