Oceanographers have been gripped by a new spirit of discovery and have undertaken the biggest population census of ocean species ever conducted - a "Census of Marine Life". The quest: to find out when and where it all began. Where did the water come from? How was life created in the oceans? And how did it evolve to the enormous diversity we see today? Join National Geographic as we travel more than 4 billion years into the past to uncover how oceans and marine life came to exist.

Africa is a land sculpted by time where animals have evolved complex weapons to arm them in the battle to live another day. An elephant's tusks can defend, or attack. An octopus uses camouflage to find food, or hide from an enemy. A Cape Fur Seal's speed and agility are valuable tools to catch a penguin, but ineffectual against a Great White Shark. A single hippopotamus holds a pride of twelve lions at bay with his sheer bulk, but backs down when faced with the piercing teeth of another hippo. With lethal weapons wielded by fearsome predators and prey, animals walk a precarious path, here among Africa's Deadliest.

《外滩探秘》第五季为最终季，海滩上关于一群年轻人的罪案和阴谋故事将画上句点。

With breath-taking CGI, beautiful landscape footage and some of the world's most important astronomical artefacts, Ancient Skies looks at the cosmos through the eyes of our ancestors, and our changing views of the cosmos throughout history.