BBC Earth

Michael Mosley finds out why fizzy drinks make you eat more. GP Dr Zoe Williams investigates whether caffeine boosts physical performance. Geneticist Dr Giles Yeo discovers what men can do about baldness. Surgeon Gabriel Weston looks into the new artificial pancreas that could transform life for diabetics. And Dr Alain Gregoire gives the psychiatrist's guide to obsessive compulsive disorder.

Tim and Adam travel to Wyoming to discover if bulls are angered by the colour red by having Tim stand stationary in a red onesie with a bull in pen.

Robson is in his home county of Northumberland in search of the great British staple - scampi. He starts at Fish Quay in North Shields, the busiest prawn port in the UK. He meets skipper John and boards his boat, the Tori Allana.

In Kavik, a looming blizzard threatens Sue's food supply. In Eagle, a break in the ice may derail Andy's spring projects.

Tony enters tombs that have been sealed shut for thousands of years, meets mummies, holds an Ancient Egyptian prime minister's heart and discovers hieroglyphs only ever seen by the ancient Egyptians who created them.

The Norwegian Dovre line runs from Oslo to the northern wonderland of Trondheim, passing through the Gudbrandsdal valley and the Dovrefjell mountain plateau. The Rauma line showcases the famous fjords, before the Nordland crosses the Arctic Circle.

Kim and Pierre redouble their efforts to harvest a moose, Becky pushes herself to the limit for her dogs, Bentley and his father build a summer runway for their plane, and Jon and his two sons look to the past to help them build for their future.

In Kavik, a looming blizzard threatens Sue's food supply. In Eagle, a break in the ice may derail Andy's spring projects.

Tony enters tombs that have been sealed shut for thousands of years, meets mummies, holds an Ancient Egyptian prime minister's heart and discovers hieroglyphs only ever seen by the ancient Egyptians who created them.

The Norwegian Dovre line runs from Oslo to the northern wonderland of Trondheim, passing through the Gudbrandsdal valley and the Dovrefjell mountain plateau. The Rauma line showcases the famous fjords, before the Nordland crosses the Arctic Circle.

Kim and Pierre redouble their efforts to harvest a moose, Becky pushes herself to the limit for her dogs, Bentley and his father build a summer runway for their plane, and Jon and his two sons look to the past to help them build for their future.

In Kavik, a looming blizzard threatens Sue's food supply. In Eagle, a break in the ice may derail Andy's spring projects.

Tony enters tombs that have been sealed shut for thousands of years, meets mummies, holds an Ancient Egyptian prime minister's heart and discovers hieroglyphs only ever seen by the ancient Egyptians who created them.

The Norwegian Dovre line runs from Oslo to the northern wonderland of Trondheim, passing through the Gudbrandsdal valley and the Dovrefjell mountain plateau. The Rauma line showcases the famous fjords, before the Nordland crosses the Arctic Circle.

Kim and Pierre redouble their efforts to harvest a moose, Becky pushes herself to the limit for her dogs, Bentley and his father build a summer runway for their plane, and Jon and his two sons look to the past to help them build for their future.

The end of the winter season means that Chip and Agnes have one last chance to harvest fat caribou until late summer.

Actor, comedian and history fanatic Tony Robinson travels across Egypt where are series of new tomb discoveries are being made. He travels the length of the Nile meeting the archaeologists unearthing extraordinary wonders.

Canada's iconic Rocky Mountaineer train loops from Vancouver to the heart of the Rockies via crystal clear lakes, lush coastal rainforest, and the desert-like splendour of the Fraser Canyon.

Nalla, the elephant matriarch, is grieving the loss of her sister, but with Kadogo missing there is no time to lose. She sets off to find him. After the floods, the land is starting the process of renewal. Bakari is enjoying the perks of being an alpha male, with both Cheka and Bibi vying for his attention. He is blissfully unaware of the conflicts going on behind his back.

Animals must find somewhere to live, a place that provides shelter from the elements and a refuge from enemies. Good homes are rare and competition can be intense, finding a home is one thing, but defending it is quite another.

Neil Oliver heads out from the Scandinavian homelands to Russia, Turkey and Ireland to trace the beginnings of a vast trading empire that handled Chinese silks as adeptly as Pictish slaves. Neil discovers a world of `starry-eyed maidens' and Buddhist statues that are a world away from our British experience of axe-wielding warriors, although it turns out that there were quite a few of those as well.

Ben Fogle journeys to the Suffolk countryside and a secretive patch of woodland, to spend the week with the unique character Will Lord, a true British caveman. Ben embraces Will's Stone Age-style existence in the forest.

On the hunt for a steady supply of fish, Bentley and his father, Gary, brave subzero temperatures on a remote, frozen lake; Jon heads into the bush on a mission.

Starting in Venice, Joanna sees how the travels of Venetian hero Marco Polo and Silk Road traders influenced its growth. In Albania, Joanna walks the beginning of the Via Egnatia, an ancient network that once linked the entirety of the Roman Empire.

Devastating floods trap residents in Australia, a base jumper gets stranded in freezing temperatures and a destructive hail storm batters Texas.

Animals must find somewhere to live, a place that provides shelter from the elements and a refuge from enemies. Good homes are rare and competition can be intense, finding a home is one thing, but defending it is quite another.

Neil Oliver heads out from the Scandinavian homelands to Russia, Turkey and Ireland to trace the beginnings of a vast trading empire that handled Chinese silks as adeptly as Pictish slaves. Neil discovers a world of `starry-eyed maidens' and Buddhist statues that are a world away from our British experience of axe-wielding warriors, although it turns out that there were quite a few of those as well.

Ben Fogle journeys to the Suffolk countryside and a secretive patch of woodland, to spend the week with the unique character Will Lord, a true British caveman. Ben embraces Will's Stone Age-style existence in the forest.

On the hunt for a steady supply of fish, Bentley and his father, Gary, brave subzero temperatures on a remote, frozen lake; Jon heads into the bush on a mission.

Starting in Venice, Joanna sees how the travels of Venetian hero Marco Polo and Silk Road traders influenced its growth. In Albania, Joanna walks the beginning of the Via Egnatia, an ancient network that once linked the entirety of the Roman Empire.