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I haven't read this specifically, but here is my deduction from what I do know:
Probably some type of mammal-like reptile or archosaur was the first warm blooded vertebrate. As for archosaurs, dinosaurs appear to have been warm blooded, and the heart structure of crocodillians suggests that they evolved from warm blooded ancestors. However, it is likely that a mammal-like reptile evolved a warm blooded metabolism before any archosaur.
What else can I help you with?
Are penguins cold blooded vertebrates or warmblooded vertebrates?
warm They are birds. They are warm blooded vertebrates.
Are vertebrates warm blooded or cold blooded?
They may be both. Mammals and birds are vertebrates which are warm-blooded. Reptiles, amphibians and fish are vertebrates which are cold-blooded.
What is a warm blooded vertebrates?
you are
Why warm blooded vertebrates eat more often than cold blooded vertebrates?
Because
Which of the vertebrates are warm blooded?
Birds
Why aves are warm blooded animals?
As a class of vertebrates, Aves are birds, and are warm blooded.
What are all the warm blooded vertebrates?
mammals
Invertebrates are warm and cool blooded animals?
dinosaurs are the animals which are warm blooded.
Why Mammals are unique from other vertebrates?
they are warm blooded
Are mollusk's cold blooded or hot blooded?
I don't think they are either. Only vertebrates are cold or warm blooded (I think).
What was the first warm blooded vertebrates that fed their young with milk appeared during the mesozoic period?
The mammals.
What group of vertebrates does a zebra belong to?
Endotherms (warm blooded)
