They're attempting to break the speed record for traveling unsupported from Ellesmere Island to the North Pole
The nerve-filled appendage helps the animals sense temperature and perhaps find prey and mates
Ecologists are racing across the ice to find out how climate change will affect the Arctic natives
For the past 10 years, hundreds of seals equipped with special headgear have collected crucial data on ocean temperature and salinity for scientists
A century ago, explorer Robert Peary earned fame for discovering the North Pole, but did Frederick Cook get there first?
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