The vitamin industry is worth more than £400million a year in the UK alone, but what are these pills actually doing for people's health? Dr Giles Yeo aims to find out, exploring if vitamin and mineral supplements are what they appear to be and putting people's diets to the test to find out if they really need these supplements. Those he meets include a scientist in Copenhagen, ...
The world's leading scientists and cinematographers relive 5 extraordinary shark feeding events. From being surrounded at night by 700 grey reek sharks, a 300-strong gathering of blacktip, dusky and bronze sharks feeding on thousands of bait fish, to the spectacular sight of more than 200 blue sharks feeding on the carcass of a seven ton whale; the Great Shark Chow Down is an e...