Based on the provided reference, no animal has pink blood.
According to the information, the colors of blood in the animal kingdom are limited to red, blue, green, yellow, and purple. The reference explicitly states, "there aren't any animals with pink blood." This is because blood color is determined by the metal that binds to oxygen in the blood's respiratory pigment. In the reference, copper is mentioned as causing blue blood.
While other colors are possible, the absence of a known pigment causing pink blood suggests that this color does not occur naturally.
Here's a summary of animal blood colors mentioned in the provided reference:
| Blood Color | Cause | Example(s) |
|---|---|---|
| Red | Iron binding to oxygen (Hemoglobin) | Most Vertebrates |
| Blue | Copper binding to oxygen (Hemocyanin) | Some Invertebrates |
| Green | - | - |
| Yellow | - | - |
| Purple | - | - |
Therefore, the answer to the question "Which animal gives pink blood?" is that no animal gives pink blood, according to the provided reference.
