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Are dinosaurs the oldest mammals?
No. Dinosaurs were not mammals. They were more closely related to birds and modern reptiles than they were to mammals.
Did mammals evolve from dinosaurs?
No. Mammals evolved from synapsid reptiles, a group not closely related to dinosaurs. Dinosaurs are more closely related to modern reptiles and birds than they are to mammals.
Why aren't dinosaurs mammals?
Dinosaurs and mammals evolved from two separate branches of reptiles. Mammals evolved from synapisid reptiles (all of which are not extinct) while dinosaurs along with the modern branches of reptiles evolved from sauropsids. So dinosaurs are more closely related to modern reptiles than they are to mammals. In more recent years scientist tend to agree that birds are in fact a surviving branch of dinosaurs.
Are dinosaurs more closely related to amphibians or mammals?
Dinosaurs are more closely related to mammals. Both mammals and dinosaurs share a reptilian ancestor that they don't share with amphibians.
Were dinosaurs egg laying mammals?
Dinosaur are not mammals. Mammals and dinosaurs evolved from completely different genetic lines. Birds are the closest and only living decedents of dinosaurs (except possibly a few rare species not known to science and only known to local tribal legend such as Mokele-Mbembe but this is not widely believed)
Are woolly mammoths older or younger than dinosaurs?
No. The first mammals appeared shortly after the first dinosaurs.
Is the giraffe related to lond necked dinosausurs?
Giraffe are not closely related to dinosaurs, the dinosaurs are reptiles, giraffe are mammals. But of course they are more closely related than are mammals and shellfish...
Are 4 legs faster than 2?
are dinosaurs faster in 2 or 4 legs
Why isn't there any dinosaurs now?
Actually, there ARE dinosaurs now; birds of all kinds are now classified as dinosaurs. They are actually more numerous than mammals!
Why are birds closer to reptiles than to mammals?
It has to do with the evolutionary tree. Shortly after the first reptiles appeared they split into synapsids and sauropsids. Mammals eventually branched off from the synapsid reptiles. After synapsid reptiles went extinct, mammals were left as the only synapsids. Meanwhile the sauropsids diversified into a number of different groups including dinosaurs and the ancestors of all modern reptiles. Later on birds emerged as a branch of the dinosaurs. In summary: mammals are synapsids while birds and modern reptiles are sauropsids.
Mammoth a dinosaurs?
No. Mammoths are from the ice age not the Mesozoic era (dinosaur age).
Did dogs have a dinosaur relative like the cats had the saber-toothed?
No. For one thing, saber-toothed cats were mammals, like modern cats are, not dinosaurs. Although there were some members of the dog family larger than most of those today. Dinosaurs belong to an entirely different branch of animals more closely related to birds and modern reptiles.
