How are dinosaurs related to birds?

Answer 1

No. Birds are dinosaurs. We don't ask if frogs evolved from amphibians, because frogs ARE amphibians.

Deinonychus (dai-non-ni-kus) is a transitional form between modern avian dinosaurs and flightless theropods. Deinonychus evolved from utahraptor and it is covered in feathers. It is actually half dinosaur, half bird!!

Answer

There are many feathered dinosaurs such as Sinosauropteryx and Caudipteryx. It is even hypothesized that Tyrannosaurus may have been feather-covered.

Archaeopteryx is the most commonly-cited transitional form between ancient dinosaurs and modern ones (birds). Archaeopteryx had feathers as bird-features but also reptilian/dinosaurian features such as toothed beak, bone-bearing tail and wings with claws.

After the evolutionary production of birds, bills became toothless and thus lighter and tails became boneless and thus lighter and more flexible for flight. Claws remained on the wings of some, such as today's extant Hoatzin, a true bird.

Perhaps we are focusing too much on dinosaur as a whole to bird as a whole as the transition. Feathers have not evolved anywhere else in the animal kingdom, so it appears acceptable to consider the appearance of a semidinosaurian and feathered fossil to represent this dinosaur-bird transitional form. Feathers are the main key. Just feathers!

Birds are highly likely to have evolved from coelurosaurian or carnosaurian dinosaurs.

Answer:Doubtful. Birds do have many features in common with theropods (bipedal carnivorous dinosaurs) which suggests that they had a common ancestor. We dont know that this common ancestor was a dinosaur though. It may well have been a bird (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 their more fragile, hollow bones reduce the chances of any fossils surviving to the present day.

Answer 2

No, but what science is saying that birds might the closest living relatives of the dinosaurs.

Answer 3

They are related in the same way as dogs are to mammals, in other words, birds are dinosaurs. Evidence for this comes from comparison of skeletons and fossils.

Answer 4

Birds are actually part of the dinosaur family. Look up on YouTube.

Answer 5

Yes! because it is said that birds first originated by dinasoures which could fly.

Answer 6

both