When Whales Walked: Journeys in Deep Time

A team of palaeontologists led by Nizar Ibrahim go in search of Spinosaurus, a giant meat eater believed to be even larger than Tyrannosaurus rex.

Bob Ballard reveals the inside stories behind his most exciting discoveries, while sharing the personal triumphs, challenges and tragedies that led him to them.

On a summer's night, there's nothing more magic than watching the soft glow of fireflies switching on and off. Few other life forms on land can light up the night, but in the dark depths of the oceans, it's a different story: nearly 90% of all species shine from within. Whether it's to scare off predators, fish for prey, or lure a mate, the language of light is everywhere in the ocean depths, and scientists are finally starting to decode it.

Dr Spencer Wells retraces the footsteps of 200 random New Yorkers and proves they are all cousins. On the most diverse street in the most diverse city in the most diverse country in the world, a team of National Geographic scientists swab the cheeks of some 200 random New Yorkers. The goal: to retrace our ancestral footprints and prove we are all cousins in the “family of man.” Cutting edge science, coupled with a cast of New Yorkers – each with their own unique genetic history - will help paint a picture of these amazing journeys. Ultimately, Man’s First Migrations answers some of humanity’s most burning questions, such as who we are and where we come from, and forces us to change how we think not only about our relationships with our neighbours, but ourselves.

A look at relevant scientific issues

National Geographic's landmark event series, The Greeks, brings together historians, archaeologists, actors, athletes, scientists and artists to launch a groundbreaking exploration into the ancient Greeks' journey - not just to better understand their past, but to discover how their legacy illuminates our present, and will shape our future. The story of the Greeks is the story of us.

National Geographic: Incredible Human Machine takes viewers on a two-hour journey through an ordinary, and extraordinary, day-in-the-life of the human machine. With stunning high-definition footage, radical scientific advances and powerful firsthand accounts, Incredible Human Machine plunges deep into the routine marvels of the human body. Through 10,000 blinks of an eye, 20,000 breaths of air and 100,000 beats of the heart, see the amazing and surprising, even phenomenal inner workings of our bodies on a typical day. And explore striking feats of medical advancement, from glimpses of an open-brain surgery to real-time measurement of rocker Steven Tyler's vocal chords.

PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and technology, and highlights the people involved in scientific pursuits.

Explorer Robert Ballard sets out to solve the mystery of Amelia Earhart's disappearance as he and a team of experts travel to the remote Pacific atoll named Nikumaroro in search of her final resting place.

At a shipyard on Germany's North Sea, a marvel of modern engineering is taking shape; hundreds of construction workers, engineers, architects, designers, animators, cast and crew are transforming 144,000 tons of steel.

Natural history documentary. Doctor Phil Manning and his team of scientists at The University of Manchester reveal the secrets of how dinosaurs lived, looked and moved as he examines 'Dakota', one of the most complete dinosaur mummies ever discovered.

This new documentary special is about the most intact slave shipwreck found to date and the only one for which we know the full story of the voyage, the passengers and their descendants.

In this prequel to Ancient Earth, travel back in time to the first two of the most powerful extinction periods in history.