By focusing on the small scale processes of the human body, scientists have developed breakthrough treatments for disease and new understandings of our deadliest new epidemics.
The stability of the US, Europe, China, or any global power depends on high-speed digital communication. With a little imagination, could a few terrorists sabotage this massive network?
Southern white rhino Victoria is pregnant with a calf that could be key in saving a species from extinction. Connor the Malayan tiger has tooth trouble. A new bird keeper learns to feed the shoebill.
A sea lion has tummy trouble and the team feeds him a snack to help them investigate why. Big Mama the guitarfish may be living up to her name.
The world's largest living structure, the Great Barrier Reef, is home to curious residents and seasonal visitors.
With JFK in office, NASA finds itself under scrutiny. Shepard's flight is delayed, while the Russians beat the US in another significant feat.
Myth-busting meets natural history with Tim Warwood and Adam Gendle.
With added facts. The team welcome two rescued southern sea otter pups, Mara and Gibson, from the California coast. Young ruddy ducks arrive at the aquarium and are introduced to their new habitat.
With added facts. A staff member heads to the Marine Mammal Center in California to help in rehabilitation efforts of elephant seals. African penguins Charlie and Lizzie have been together for 25 years.
From our genetic blueprint, to the DNA of our microbial inhabitants, to the ghost code that regulates how our genes are expressed, scientists have begun to decipher the extraordinary 'Code of Us.'
Are the wealthy just born in the right place at the right time? Are the poor victims of a system designed to keep them down? Or do physics and biology determine who is rich and who is poor?
Mkhaya, the youngest baby elephant in the Safari Park, learns to use her trunk. Will Alba the Andean bear become a first-time mum? Vets examine Mandazzi the gorilla. Jeff looks for a coastal patch nose snake.
Sharks are more than just hunters. Only now are discoveries revealing a hidden side to their character. They have an intricate social life, complex courtship rituals, surprising ways of bringing up their young, and extraordinary powers of navigation. They can forge relationships with the strangest of partners, even us! This is the secret life, of the shark.
Safari Park keepers say goodbye to two elephant brothers. Can the zoo vets design a custom shoe for Felix, an excitable three-toed Baird's Tapir? Two African penguin chicks grow up and join the colony.
A rescued sea otter must build his independence after becoming too attached to his best friend; over 50 African penguins are moved for spring cleaning.
Astronaut Eugene Cernan discusses his two missions to the Moon, and what he loved and lost in the process.
Shepard's indiscretion leads to a wedge between Glenn and the astronauts, ultimately determining who among them will be the first man in space.
James visits the Andes to discover how a potato helps inhabitants survive the altitude.
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