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While hair keeps animals warm, it also creates a daily burden of maintenance. Adult cats, for instance, spend up to 50 percent of their day grooming. 

But not all animals keep clean in the same way. Some work hard for it, while others have developed more efficient mechanisms.

According to a new study from David Hu, an associate professor at the Georgia Institute of Technology, and his mechanical engineering Ph.D. student, Guillermo Amador, understanding the different cleaning techniques that animals use could have implications for keeping man-made objects, including spaceships, free of pollutants and dirt.

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Click link below for story and slideshow:

http://www.huffingtonpost.com/entry/how-is-a-sea-otter-like-a-hockey-rink_564275f1e4b060377346caab

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