An exploration of the other world with which we share what we call the Earth, though in view of the nature of its surface it should probably be called the Ocean.
Sea lions glide through the ocean effortlessly, graceful and agile as birds, though on shore, they are heavy and clumsy. This episode reveals the struggles of the sea lion.
The dolphin is known for its curious, friendly demeanor and its tendency to approach humans. This episode depicts the complex relationship between dolphins and whales, two creatures that share the middle oceans.
The trumpet fish shows its skill at hiding, and introduces us to other cryptic creatures of the ocean.
Human beings lack the speed and agility to avoid the ocean's larger predators.
A look at more aggressive form of defenses than camouflage or flight, demonstrated by a lion fish.