Horizon One of the largest lakes in the world lies untouched for over 15 million years under four kilometres of Antarctic ice. Superhuman Marvel at the human body's incredible ability for self-repair with Professor Lord Winston .
Microscopic footage reveals how modern medicine enhances our powers of regeneration .
Raising the Sea Dragon Delve even deeper into the prehistoric world of the ancient sea dragon which swam the seas around 200 million years ago with the latest update on the dig. And Time Take a journey in time and space.