HUMPBACK WHALES _ How a Starving Mother Swims Her Calf 3,000 Miles _ Documentary

Giants Below explores the animals that dwarf everything around them: how they grow so big, what they eat, and how they survive in the open sea and the deep. The blue whale, the largest animal known to have ever lived. The whale shark, the biggest fish in the sea. The Greenland shark, which may live for centuries. The giant squid, with eyes the size of dinner plates.