Ever wondered where your cat slinks off to when it goes outside?

The resulting data could help conservationists save wildlife that the cats prey on, as well as reveal new insights into cat behavior, experts say.

Our pet cats are a pretty lazy bunch, sleeping or at least lying around well over 90 percent of the time. But still, when that screen door shuts behind them, our felines are prone to roam. (Also see "What Do Cats Think About Us? You May Be Surprised.")

One thing that makes the Cat Tracker project different from other animal-tracking efforts is that anyone in the U.S.—and now in New Zealand and Australia—can participate. A cat owner must simply buy or borrow a GPS

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