Narrator (30 episodes, 2005-2007)
Self (30 episodes, 2005-2007)
Self (27 episodes, 2005-2007)
Self (22 episodes, 2005-2007)
Self (17 episodes, 2005-2007)
Narrator / Series Narrator (14 episodes, 2007)
Narrator (13 episodes, 2008)
Self (10 episodes, 2005)
Self (5 episodes, 2007)
Self (4 episodes, 2008)
Narrator (1 episode, 2007)
Self - Creator and Series Editor (1 episode, 2008)
Self - Scientific Consultant: Cambridge University (1 episode, 2008)
Self - Senior Researcher (1 episode, 2008)
Self - Cinematographer (1 episode, 2008)
Self - Veterinarian (1 episode, 2008)
Self - Researcher (1 episode, 2008)
Self - Camera Assistant and Sound (1 episode, 2008)
Self - Field Project Manager (1 episode, 2008)