Leanne Allison and Karsten Heuer share why they decided to track the caribou annual migration.

For more information on Arctic wildlife, see the new IMAX® film “To The Arctic 3D” opening in select IMAX Theatres starting April 20, 2012. “To The Arctic 3D” is a MacGillivray Freeman Film from Warner Bros. Pictures and IMAX Corporation. Presented by One World One Ocean Foundation – http://www.oneworldoneocean.org/initiatives/entry/to-the-arctic-the-movie