Its diet is mainly comprised of krill and small crustaceans ... While you may imagine that blue whales have no real ocean predators due to their enormous size, they are at risk from killer ...

Today, a blue whale is 10 THOUSAND ... In fact, over the next 37 million years or so whales grew increasingly diverse but their size remained small. And were only 18 feet long.

With a body size that rivals that of ... in pursuit of tiny prey, a famished blue whale—the world’s largest predator—swiftly spins 360 degrees to gain the most advantageous angle for a mouthful of ...