How do you determine the difference between animal blood and human blood?

Answer 1

By measuring the number of chromosomes in the blood. Humans and animals have a different number; also, based on the number, you can determine what animal or species it is.

Answer 2

It depends on the animal, and how you're examining it. Grossly (pardon the expression) there's no effective way to tell the difference - it's red, sticky, and turns dark brown with time. Under a microscope certain kinds of animal blood have distinctive characteristics - for example horse red cells tend to form stacks (called rouleaux), cat red cells tend to develop small points (crenelation), and bird red cells have nuclei (mammalian RBC's have none). As someone else mentioned, genetic analysis can make clearer distinctions, but it isn't readily available.

Answer 3

i wish i can answer this for u, I myself can relay on the DNA in order to exclude the human type in addition to the peculiar morphology to each type of red cells which can even be nucleated in some spp of animals such as amphibians, birds and fish.

Answer 4

If you stab an animal and it bleeds, the blood is animal blood.
If you stab a human and she bleeds, the blood is human blood.
If she bleeds without being stabbed, it might be menstruation.