The parents of two year old Raj face an unimaginable dilemma. (R)
7/12 Some species have overcome the force of gravity to fly through the air. (R)
10/11 Darryl Grimason revisits his childhood as he goes rock pooling near Newcastle, Co Down. (R)
2/5 Ellie Harrison is in the Lake District, finding out about a rare Arctic winter resident.
3/5 Ellie Harrison visits Britain's forests, looking at charcoal creation and tree planting.
Documentary looking at child poverty in America, which has reached record levels.
4/6 The West Coast Mainline is the busiest route in Europe, linking London to Glasgow. (R)
Thursday 7 March 2013