Hello, i have a passion for dinosaurs, voilà ...so i décide to create a thread
View attachment 90804
View attachment 90806
I am new to this forum so i do the best i can and i don't speak English all the time.
There so much to say about this périod of time, like bird are descending for the dinosaurs
l'archæoptéryx
View attachment 90805
you do know there is no proof birds descended from dino's???
I know yes,
"We're finally breaking out of the conventional wisdom of the last 20 years, which insisted that birds evolved from dinosaurs and that the debate is all over and done with," Ruben said. "This issue isn't resolved at all. There are just too many inconsistencies with the idea that birds had dinosaur ancestors, and this newest study adds to that."
Almost 20 years of research at OSU on the morphology of birds and dinosaurs, along with other studies and the newest
PNAS research, Ruben said, are actually much more consistent with a different premise -- that birds may have had an ancient common ancestor with dinosaurs, but they evolved separately on their own path, and after millions of years of separate evolution birds also gave rise to the raptors. Small animals such as velociraptor that have generally been thought to be dinosaurs are more likely flightless birds, he said.
"Raptors look quite a bit like dinosaurs but they have much more in common with birds than they do with other theropod dinosaurs such as Tyrannosaurus," Ruben said. "We think the evidence is finally showing that these animals which are usually considered dinosaurs were actually descended from birds, not the other way around."
Bird-from-dinosaur theory of evolution challenged: Was it the other way around?