vertebrate's
Mammals and birds have four-chambered hearts.
No. Birds have only one heart, but they have four chambered hearts like all mammals and crocodiles do.
Birds, all mammals, and crocodiles all have four chambered hearts
Adaptations that birds and mammals share include the fact that they are both warm blooded, they are both vertebrates, and they both have four chambered hearts. Unlike mammals, birds are covered in feathers and all birds lay eggs. Unlike birds, mammals are covered in hair, produce milk for their young, and nearly all mammals give birth to live young (except a few species that lay eggs).
Of course not ...no birds are mammals !!!!!!!!!!!No, they are birds.
All extant mammals have some form of hair. No non-mammals have hair. Mammals have warm-blood. Non-mammals, with the exception of birds, are cold-blooded. Reptiles and birds have scales, but amphibians do not. Sponges do not have hearts or vertebrae. In short, there is not a whole lot that all non-mammals have in common, except the state of not being a mammal.
Like mammals, avians (birds, or members of the class Aves) have four-chambered hearts, consisting of two atria and two ventricles. By contrast, reptiles and amphibians have three-chambered hearts (two atria and one ventricle, sometimes with an incomplete septum in reptiles) and fish have two chambers (one atrium and one ventricle).
ALL The Typical/Usual Endotherms, (birds and mammals) have 4 chambered hearts, the atypical/unusual few reptiles and fish that fall into the category DO NOT have 4 chambered hearts. Bird & Mammal hearts have 4-Chambers; Right and Left Atria & Right and Left Ventricles. Having Hair or Feathers indicates the animal is endothermic (at all times), because ONLY Birds and Mammals fall this category.
Yes, birds have 4-chambered hearts, just like mammals. This helps them efficiently pump oxygenated blood throughout their bodies, supporting their high metabolic rate required for flying.
No, they are birds.
No. Birds are not mammals.
Mammals differ from birds as birds lay eggs, and mammals give live birth.