Why do some animals, like sharks and crocodiles, have such powerful immune systems that they rarely get sick or develop cancer, and could we learn from them to improve human health?

Question

Why do some animals, like sharks and crocodiles, have such powerful immune systems that they rarely get sick or develop cancer, and could we learn from them to improve human health?

In: 9649

Answer 1

Also, many types of shark have been around in more or less their present forms for a shockingly long time. Like when the first dinosaurs appeared, sharks were already ancient. That’s a lot of time for designs to be improved upon, even if each of said improvements took a loooooooooong time (which they may or may not have, we don’t have that info yet)