Entre dos mundos: La historia de Gonzalo Guerrero

National Geographic follows archaeologist and explorer Fabio Amador on a fascinating voyage to unveil the ancient mysteries that lie beneath the modern streets of Cordoba, which dates back some 2,000 years. Fabio joins archaeologists and historians in the field as they use state-of-the-art technologies to discover and recreate Cordoba's forgotten past.

Crocodiles appeared about two hundred million years ago. They coexisted and hunted the large dinosaurs and are the last survivors of the group of archosaurs, which means "ruling reptiles", a group that also included the dinosaurs and pterosaurs - flying dinosaurs - and more. They overcame geological cataclysms, planetary climatic changes, continental drift and even humans action. What made them surpass all their contemporaries and last until today?

Get a glimpse deep inside the Congo River Basin, whose impenetrable jungles remain one of the least explored places on Earth.

Documentary about a controversial figure, repudiated by many and praised by others, Cortés had led to writing thousands of pages about his life and the military task for which he is known: the conquest of the great Mexica Empire of Moctezuma II. This documentary explores the myth that was created around him and tries to explain a man with a life full of shadows and lights.

A look at the evolution of an animal we all know and love -- the penguin. Known for a complex social hierarchy as well as their ability to withstand some of the most harsh temperatures in nature, penguins have proven themselves among one of the most adaptable species on the planet.

Documentary with dramatization that seeks to highlight the figure of Doña Marina, Malintzin, Malinche, a fundamental character in the conquest and in the creation of miscegenation in Mexico.