What scale of defense?
Body size might be an animal’s most important trait. Lots of things are correlated with body size. For example, we know that on average, bigger animals have lower metabolic rates, smaller litter sizes, and live longer. They tend to have larger home ranges, larger species ranges in general, and smaller population sizes. Bigger animals have proportionally more blood too. So, we would expect the numbers of cells in the blood to roughly scale with size……
