Modern birds evolve directly from what?

Answer 1

The birds are the direct descendants of the dinosaurs.

Answer:We dont know that birds evolved from dinosaurs. It may actually be the other way round. The bipedal meat-eating dinosaurs called Theropods may have evolved from early birds (see related links).

Looking back in time through the theropod fossil record, these dinosaurs appear to be more bird-like the further back in time you look. Raptors are known to have had feathers and were fairly bird-like, but Archaeopteryx was much more bird-like and lived much earlier and may have been an ancestor of the raptors. There is also a controversial fossil called Protoavis that was dated even earlier and was more bird-like still, with hollow bones like modern birds.

So birds may have been around throughout the mesozoic era and pre-date the dinosaurs. We have little record of them though because avian bones are generally too fragile to leave fossils.

Answer 2

well they didn't directly evolve from anything but over the course of time they evolved from Bactria to the first dinosaurs to flying dinosaurs to finally modern birds.

Answer 3

Birds are descended from dinosaurs