NOVA
Season 25 Episode 20 - The Perfect Pearl
For centuries, man has risked both life and life savings to possess the pearl's beauty. Pure and perfect, glowing and dazzling, a pearl is actually a mistake formed when an oyster reacts to an irritant lodged in its shell. Go back to the late 18th century to meet Kokichi Mikimoto, who developed a technique for culturing pearls that's still used today. Travel to a Japanese oyster hatchery to see how technology is advancing pearl cultivation. Watch divers search for the immense pearls found in the world's largest oyster, the Pinctada maxima. See a strand of South Sea perfect pearls worth $2.3 million. And discover little-known facts as authors, zoologists, scientists and pearl experts reveal the pearl's wondrous history.
Episodes in Season 25
Coma
55 min
Faster Than Sound
55 min
Bomb Squad
55 min
The Proof
55 min
Wild Wolves With David Attenborough
55 min
Super Bridge
55 min
Treasures of the Sunken City
55 min
Avalanche!
55 min
Danger in the Jet Stream
55 min
Night Creatures of the Kalahari
55 min
Mysterious Mummies of China
55 min
Supersonic Spies
55 min
Animal Hospital
55 min
The Brain Eater
55 min
Everest - The Death Zone
55 min
Search for the Lost Cave People
55 min
Warnings from the Ice
55 min
Crocodiles! With David Attenborough
55 min
The Truth About Impotence
55 min
The Perfect Pearl
55 min
