National Geographic Television

Explorers Meriwether Lewis and William Clark lead a U.S. expedition to the Pacific Ocean and back.

This is the story of the incredible struggle for survival of the dragons of the Galapagos. On the island of Fernandina, each year Land Iguanas migrate up the steep slopes of the 5000ft active volcano to lay their eggs in the warm soil. If the rim of the crater is fully occupied they have to climb 1 km down the steep crater walls to the floor below. Many are killed finding a path down as the walls are steep & dangerously unstable causing many landslides.

The story of Darwin's finches and their relationship with other creatures of the Galapagos; tracing their evolution, how the islands were formed and how it's main inhabitants got there.

Featuring the parallel stories of a supersize building project and a jaw-dropping archaeological adventure, Rome Underground takes viewers on an immersive journey deep under the Eternal City — revealing how the construction of a 26-kilometer subway line through Rome has literally unearthed some of the most important discoveries of the modern age.

National Geographic Scientist Uncovers Treasure Trove of Human Fossils That Could Challenge Rules of Human Evolution Tiny Humans Living as Recently as 1,500 Years Ago Could Rewrite the Timeline for Human Evolution.

Crocodiles have hunted in the African rivers since the age of the dinosaurs for over 60 million years and have been known to conquer the test of time as they have been the top predator of the river, making them the ruler of the African tributaries. Despite their aggressiveness, crocodiles can have a soft spot for their own young.

Deadly and with sharp claws, vultures, eagles, and hawks are majestic, wild, and mysterious birds that have always filled our imagination as powerful symbols of nature. Throughout this documentary, follow Fergus Beeley of National Geographic, a passionate bird of prey enthusiast, on an exciting journey from the coast of England to Australia and learn about the evolution of these powerful animals, feared conquerors of the skies...