What is the evolutionary relationship between crocodiles and birds?

Crocodiles are the closest living relatives of the birds, sharing a common ancestor that lived around 240 million years ago and also gave rise to the dinosaurs.

What do crocodile and birds have in common?

Birds, crocodiles and dinosaurs have much in common – including, it turns out, their breath. The hyper-efficient breathing system of birds is shared with alligators, and probably evolved in archosaurs, the common ancestor of crocodilians, birds and dinosaurs.

How is a bird related to a crocodile?

Alligators and birds are part of the same larger group, called archosaurs, which has existed for 250 million years and which has given rise not only to birds and crocodilians, but also to dinosaurs.

When did birds and crocodiles diverge?

240 million years ago
While crocodilians diverged from birds more than 240 million years ago (MYA), animals with morphology unambiguously similar to the extant crocodilian families (Alligatoridae, Crocodylidae, and Gavialidae) first appear in the fossil record between 80 and 90 MYA (3).

What phylogenetic evidence supports the conclusion that crocodiles are more closely related to birds than lizards?

What phylogenetic evidence supports the conclusion that crocodiles are more closely related to birds than lizards? Crocodiles and birds share a more recent common ancestor than crocodiles and lizards. Crocodiles, birds, and lizards have the same, most-recent common ancestor.

Which of the following is common ancestor of birds and crocodiles?

Archosauria is defined as the group that includes the common ancestor of crocodiles and birds and all of its descendants.

What are the two shared characteristics between reptiles and birds?

Birds share many characteristics with reptiles such as being vertebrates, having scales on parts of their bodies, and laying amniotic eggs with shells.

How are crocodiles birds homologous?

Birds and crocodiles both provide parental care to their offspring (as shown below); this behavior was inherited from a common ancestor and is homologous.

What phylogenetic evidence supports the conclusion that crocodiles are more closely related to birds than lizards quizlet?

What phylogenetic evidence supports the conclusion that crocodiles are more closely related to birds than lizards? -Crocodiles and birds share a more recent common ancestor than crocodiles and lizards. -Crocodiles, birds, and lizards have the same, most-recent common ancestor.

Which common ancestor do birds and some reptiles share and which group of reptiles is most closely related to birds?

Although the living reptiles birds are most closely related to are crocodilians (archosaurs), when it comes to their relation to dinosaurs, birds evolved from theropod dinosaurs. These theropods share over 100 traits with modern birds.

Which are more closely related to crocodiles birds or lizards explain quizlet?

Crocodiles are more closely related to birds because they share a more recent common ancestor with birds (ancestor ➎) than with lizards (ancestor ❹).

Are crocodiles more closely related to lizards or to birds explain your response?

Based on this evolutionary tree, crocodiles are more closely related to birds than to lizards because they share a more common ancestor with the birds than with lizards.

Why are birds more closely related to reptiles?

Actually, birds and mammals are technically reptiles, as they descended from the very first reptile. Birds are more intimately related to dinosaurs, as they branched off from a dinosaur. The first group of reptiles split 300 million years ago.