Did birds evolve from dinosaurs?

Birds: The Late Evolution of Dinosaurs Recently, fossils of early birds and their most immediate predecessors have been collected at an unprecedented rate from Mesozoic-aged rocks worldwide. This wealth of new fossils has settled the century-old controversy of the origin of birds. read more

Since he was a firm believer in Dollo's law, which states that evolution is not reversible, Heilmann could not accept that clavicles were lost in dinosaurs and re-evolved in birds. He was therefore forced to rule out dinosaurs as bird ancestors and ascribe all of their similarities to convergent evolution. read more

Birds did not evolve from dinosaurs: what creationists have been pointing out for years is now buttressed by new research. The notion that theropod dinosaurs evolved into birds has almost certainly become one of the most widely accepted “facts” of evolution. read more

When paleontologists built evolutionary trees to study the question, they were even more convinced. The birds are simply a twig on the dinosaurs' branch of the tree of life. As birds evolved from these theropod dinosaurs, many of their features were modified. read more