Whales became sea dwellers from even toed ungulated land dwellers who ultimately came from the sea, so I suppose it might be possible. " Evolve back " would not be the correct terminology as there is only evolution, which has no direction. I do not think it would happen though.
It is now thought that birds evolved from dinosaurs (similar bone structure), and chickens seem to trace back to the tyrannosaurus rex.
No it is not possible to bring back the dinosaurs
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.
No. However scientists have discovered that birds are in fact the descendants of dinosaurs (they did not all die out and their descendants evolved into birds). Thus there are in fact dinosaurs living in the wold today, just not big scary ones with sharp teeth!
it goes way back to the archosaurs. from these reptiles came crocodilians on one hand, and birds on the other. in between of course there where the dinosaurs.
Technically yes. Birds are evolved dinosaurs. Animals traditionally thought of as dinosaurs; Tyrannosaurus, Triceratops, Baryonyx, ect; are extinct. I think some turtles and gators where around back then also.
No, its actually the other way around: birds evolved from dinosaurs. However, some new hypotheses have been raised that suggest that the raptor dinosaurs (such as Velociraptor and Deinonychus) were actually a type of flightless bird. This hasn't been confirmed yet, but birds still evolved from dinosaurs, specifically the theropods.Answer:Birds do have many features in common with theropods (bipedal carnivorous dinosaurs) which suggests that they had a common ancestor. It is generally believed that this common ancestor was a dinosaur but 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 ancient birds may have existed before the dinosaurs and theropods may be descended from them. We have little record of these ancient birds though because their more fragile, hollow bones reduce the chances of any fossils surviving to the present day.
yes! Scientists are currently trying to as well. Scientists have been able to reverse stuff in the embryos of birds, which gave those birds features that were the same as dinosaurs. Eventually, we will see some dinosaurs :D
Theropods, a type of bipedal, carnivorous dinosaur.Answer:Possibly none. Birds may have evolved from a creature, likely a reptile, that pre-dated the dinosaurs. 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.
There has been research done that indicates that birds have evolved from dinosaurs. and mounting evidence shows that theropod dinosaurs are the ancestors of birds. Evidence includes countless skeletal similarities and evidence of feathers in many fossils. Feathers were thought to originally developed for warmth, and eventually evolved into flight aids.In face of this many scientists do consider birds to be descended from dinosaurs, if not a branch of them.Answer: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 even pre-date the dinosaurs. We have little record of them though because their hollow bones decompose very easily so are less likely to leave fossils. We do have some very ancient bird footprints though (see 3rd link).It may be more accurate to call the theropods flightless birds, rather than calling birds dinosaurs.
Elephants and their relatives first appeared in the past 30 million years or so. Dinosaurs apart from birds went extinct 65.5 million years ago. So no elephants were around at the same time as non-avian dinosaurs.
it is un-certain that birds do chew, their food, but mammals do. But, the next best thing to a vegetarian bird that chew it's food, are the ornithops, a group of plant-eating dinosaurs which includs ceratopsids (triceratops) and the hadrosaurs (duck-billed dinosaurs) sadly like all the other dinosaurs they went extinct 65 million years ago, but it might be possible (atleast possible) if not likely that modern plant-eating birds may chew their food with annomal ridges the the sides of their beacks as they move them up and down while the ridges them selves cut up the vegetation into smaller bits, only to leave the rest grinded up by stones in their stomachs, so that the digestive juices could get back to work. So, like with mammal hervibores, as the bird's stomachs digest, the bird itsealf (the body) will be back in physycle order to their daily eating.