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Mammals came before birds. The first mammals lived in the Triassic and the first birds lived in the Jurassic.
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∙ 15y ago
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∙ 11y agoYes. They share a reptilian ancestor that lived in the late Carboniferous period.
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∙ 12y agoYes. Mammals evolved in the late Triassic period about 230 million years ago while bird did not appear until the end of the Jurassic about 150 million years ago.
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∙ 12y agono
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Do birds and mammals inherit intelligence from a common ancestor?
yes
Did jaws develop independantly in mammals and birds?
No. Both mammals and birds "inherited jaws" from a common reptilian ancestor which ultimately originated in an early fish.
What are the similarities of human and chicken embryo?
Mammals, birds, and reptiles all derive from a single common ancestor.
How are birds related to mammals?
Mammals and birds are both vertebrates descended from an early reptilian ancestor.
What is ancestral characters?
An Ancestral Character is a character inherited from a COMMON ancestor. For example the presence of lungs in mammals (an ancestral character) does not indicate that mammals are more closely related to amphibians vs. reptiles, or reptiles vs. birds etc., etc. It is simply a character inherited from a common ancestor.
What do birds and mammals reproduction have in common?
Both birds and mammals care for their young.
Do birds and reptiles share a common ancestor?
Yes. If you go back far enough, all life on Earth shares a common ancestor.
That crocodiles share a common ancestor with bird dolphins and dog support your answer?
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.
What do birds snails mammals and reptiles have in common?
They are all animals. That is about it.
How long ago did birds and humans share a common ancestor?
300 million years.
Are birds of paradise mammals?
Of course not ...no birds are mammals !!!!!!!!!!!No, they are birds.
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.
