Lefties are all right with kangaroos

Kangaroos prefer to use one of their hands over the other for everyday tasks in much the same way that humans do, with one notable difference: generally speaking, kangaroos are lefties. The finding, reported in the Cell Press journal Current Biology on June 18—the first to consider handedness in wild kangaroos—challenges the notion that "true" handedness among mammals is a feature unique to primates.

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