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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.
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∙ 8y ago
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Is a alligater a dinosaur?
I am not quite sure but i do know that crocodiles are evolved from dinosaurs but i don't think alligators are. ??? from Megannn
What does crocodilia mean?
I think it's general for Alligators and Crocodiles.
Do alligators and crocodiles live for 240 million years?
no...why would you think that
Names of reptiles?
snakes,turtles,geckos,lizards,alligators,crocodiles
What are male crocodiles called?
alligators........... think sorry i really don't know
Are female trexes bigger than male trexes?
People think that one is bigger than another but they say they are related to birds that's why females are bigger BUT they are more related to crocodiles and alligators which males are bigger
What animal do scientists think penguins evolved from?
Penguins evolved from birds. :)
Why do scientists think that dinosasurs evolved into birds?
90% of modern birds
Are crocodiles considered alligators?
No. Crocodiles and alligators are both of the order Crocodilia (as are caimans and gharials), but they separate when you get down to superfamily and family, and there are very distinct differences between the two which makes them unique.
How are alligators different from a crocodile?
Crocodiles and Alligators have distinct evolutionary histories for starters. Both are members of an a group of crocodylomorphs that radiated from archosaurs (that group includes dinosaurs and therefore birds) in the Triassic and are both are part of the order Crocodylia that began in the Cretaceous. Crocodiles first evolved ~60mya and Alligators evolved some 20my later. Another living group, the Gavials emerged in the Cretaceous- older than either crocs or alligators. As for telling the animals apart visually today, Gavials are pretty distinct with the narrow jaws and are almost exclusively piscivorous. The best way to distinguish a croc is to note protruding teeth from the lower jaw outside of the mouth. Crocs will have one or a few teeth poing out from the lower jaw, upwardly and alligators tend to have a bigger upper jaw and will not have lower teeth protruding. There are other differences as well that are not visibly discernable. I think alligators are interesting for having a respiratory system that is unidirectional. This is a trait dinosaurs and birds have that is very advanced and allows for fresh air to fill the lungs at both the inspiration and expiration stages of breathing as opposed to only at inspiration as in our "dead-end" lungs.
Can alligators and crocodiles dig up to three feet?
Honestly I dont know but I dont think that they would have to they have it pretty good in the water.
What was around longer birds or dinosaurs?
Both. If you think about it, birds evolved from dinosaurs, and some think birds are the only living dinosaurs left.
