Mammals
Most mammals.
Haemoglobin is the respiratory pigmaent of blood in mammals
The blood of birds and mammals is called "blood" or "whole blood." It is composed of red blood cells, white blood cells, platelets, and plasma.
Birds have a unique blood type system that differs from mammals. Their blood is classified into different types based on the presence of specific antigens on the surface of red blood cells, with the most commonly studied being the A and B types. Additionally, birds possess nucleated red blood cells, unlike mammals, which have enucleated red blood cells. This unique physiology reflects their evolutionary adaptations and plays a role in their immune response.
Mammals have blue blood (lack of oxygen), but when exposed to oxygen, it turns red Hope this helped! :)
there are 2 types of cow blood- cow blood and baby blood
White blood cells, also known as leukocytes, are the only type of blood cells in mammals that contain a nucleus. Red blood cells, or erythrocytes, do not have a nucleus.
Sharks are not mammals, and they do not drink blood.
Hyenas have blood types that are similar to other mammals, typically consisting of A, B, and O blood groups. Additionally, they possess an additional antigen that can complicate blood transfusions between individuals with different blood types.
Obviously because most mammals have different blood types. At least humans do. If you get the wrong type of blood in your system, then your body won't function well. I assume and you should as well, that tis the same for birds and other mammals. Now if this gets put up as the answer to this question, I will have to say that Wikianswers sucks... try yahoo or something. Terribly sorry for the insult wikianswers...
No. Platypuses are mammals and all mammals are warm-blooded.