Divine level ferocious beasts... Those were existences even rarer than Divine level experts.
It was because animals were, after all, animals. Even if their bodies went through transformations, thus giving them powerful bodies and unique abilities, their brains were still incomparable to that of humans. Moreover, neither did they have the great intelligence which humans possessed.
It was impossible to attain the Divine level without intelligence. Therefore, Divine level ferocious beasts were much fewer in numbers compared to humans.
However, once a ferocious beast attained the Divine level, its body's power and capacity to withstand pressure would be very high. It would tend to be even more powerful than most Divine level experts.
Therefore, Divine level ferocious beasts were not only powerful, but their abilities were very much stronger as well. It was extremely hard to attain their blood, let alone the specially condensed blood essence.