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What else can I help you with?
What type of animal was the common ancestor of mammals and birds?
The common ancestor of mammals and birds was a reptile.
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 anatomically similar structure inherited from a common ancestor?
The pentadactyl limb structure, found in mammals, birds, reptiles, and amphibians, is inherited from a common ancestor. Despite modifications for different functions, such as wings in birds and flippers in whales, the underlying bone structure remains similar.
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 all mammals have a common ancestor?
Not actually. There were several different marine reptiles that had mammalian characteristics, notably the group known as pelycosaurs. The earliest mammals appeared early in the Age of Reptiles (Mesozoic Era), but were uniformly small in size. The group called synapsids took an evolutionary path to mammals while the sauropsids became today's reptiles and birds.
Are fish monophyletic?
No, fish are not monophyletic. The term "fish" is a paraphyletic group because it includes some but not all descendants of a common ancestor. It does not include tetrapods (four-limbed vertebrates such as amphibians, reptiles, birds, and mammals) which share a more recent common ancestor with some fish species.
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.
