U&Eden +1 Thursday

The team think they can smell profit by choosing one of the simplest cars ever built, the VW Beetle

The veteran naturalist investigates two shells that have proved to be winners in evolution - the bird's egg shell and the hard shell of the tortoise

A chance to buy goods from the comfort of home

It's Robbie Cumming's toughest trip yet as he battles through water weed on the Bradley Arm and gets stuck in silt on the Ridgacre Branch

Robbie Cumming encounters a leaky lock pound on the Perry Barr Flight and gets marooned in the mud before travelling under Spaghetti Junction in Birmingham

Robbie Cumming discovers a mysterious message in a bottle on the Ashby Canal and calls in to meet a mate who lives on an old narrowboat

Robbie Cumming takes a tumble at Buckby Locks in Northamptonshire and has a problem with his power supply and battery bank

It's Robbie Cumming's toughest trip yet as he battles through water weed on the Bradley Arm and gets stuck in silt on the Ridgacre Branch

Robbie Cumming encounters a leaky lock pound on the Perry Barr Flight and gets marooned in the mud before travelling under Spaghetti Junction in Birmingham

Robbie Cumming discovers a mysterious message in a bottle on the Ashby Canal and calls in to meet a mate who lives on an old narrowboat

Robbie Cumming takes a tumble at Buckby Locks in Northamptonshire and has a problem with his power supply and battery bank

It's Robbie Cumming's toughest trip yet as he battles through water weed on the Bradley Arm and gets stuck in silt on the Ridgacre Branch

Robbie Cumming encounters a leaky lock pound on the Perry Barr Flight and gets marooned in the mud before travelling under Spaghetti Junction in Birmingham

Robbie Cumming discovers a mysterious message in a bottle on the Ashby Canal and calls in to meet a mate who lives on an old narrowboat

Robbie Cumming takes a tumble at Buckby Locks in Northamptonshire and has a problem with his power supply and battery bank

It's Robbie Cumming's toughest trip yet as he battles through water weed on the Bradley Arm and gets stuck in silt on the Ridgacre Branch

Robbie Cumming encounters a leaky lock pound on the Perry Barr Flight and gets marooned in the mud before travelling under Spaghetti Junction in Birmingham

Robbie Cumming discovers a mysterious message in a bottle on the Ashby Canal and calls in to meet a mate who lives on an old narrowboat

Robbie Cumming takes a tumble at Buckby Locks in Northamptonshire and has a problem with his power supply and battery bank

It's Robbie Cumming's toughest trip yet as he battles through water weed on the Bradley Arm and gets stuck in silt on the Ridgacre Branch

Robbie Cumming encounters a leaky lock pound on the Perry Barr Flight and gets marooned in the mud before travelling under Spaghetti Junction in Birmingham

Robbie Cumming discovers a mysterious message in a bottle on the Ashby Canal and calls in to meet a mate who lives on an old narrowboat

Robbie Cumming takes a tumble at Buckby Locks in Northamptonshire and has a problem with his power supply and battery bank

It's Robbie Cumming's toughest trip yet as he battles through water weed on the Bradley Arm and gets stuck in silt on the Ridgacre Branch

The evolutionary documentary concludes, as David Attenborough profiles the Siamese fighting fish and the kangaroo, which has a kick so strong it can kill