On the sea off the eastern coast of the continent, a dozen or so giant whales were frolicking in glee. They swam swiftly, herding schools of fish toward the center from all directions, and then dove underneath the mass of fish, surfacing with their gaping mouths wide open.
They could gulp down tons of live fish at once, making their feeding efficiency extraordinarily high.
These whales were leisurely. They were massive creatures, measuring sixty meters at times and weighing thousands of tons with almost no natural predators in the ocean. Until they encountered…
Suddenly, a whale let out an ultra-low frequency sound, swiftly diving deep into the ocean. The rest of the whales followed suit, bringing a significant amount of air with them into the water. This caused large areas of bubbles to surge upward, forming fountain-like circles on the water's surface.
