Crocodiles and birds share a common ancestor. This can be seen by comparing the internal anatomy of the two. Dogs and Dolphins also have a common ancestor. Their skeletons again are both distinctly mammillian. The ancestor of dogs and dolphins and the ancestor of birds and crocodiles will again share a common ancestor, but you will need to go much further back. I am not sure of the timescales but we are talking tens to hundreds of million years.
Yes, if you go back far enough.
That seems very likely since everything is interelated.
that they share a common ancestor
The presence of a similar skull structure and the presence of scales on their skin suggests that crocodiles and birds share a common ancestor. Additionally, their common ability to lay hard-shelled eggs further supports the theory of a shared ancestry.
They didn't but they do share a common ancestor. Looking at fossils, scientists have determined that bird evolved from small carnivorous dinosaurs. Both dinosaurs and crocodiles stem from a group of reptiles called archosaurs.
The common ancestor is the Hyracotherium
yes they do in facts share a common ancestor.
Crocodiles are distantly related to lizards and snakes and even more distantly related to turtles. Strangely, the closest relatives to crocodiles and alligators are actually birds. This is because both crocodiles and dinosaurs belong to a group called archosaurs. Birds, in turn, evolved from dinosaurs.
The common ancestor of the three religions Judaism, Christianity and Islam was Abraham
The common ancestor between elephants and sirenians is Manatee.
The common ancestor of mammals and birds was a reptile.
Yes, plants and animals share a common ancestor.