Researchers find most kangaroos are left-handed
For years, researchers had thought that handedness was unique to great apes, including humans, but scientists at Saint Petersburg State University in Russia have learned kangaroos possess the trait as well.
Among kangaroos, the appendage used most often is the left one. This was learned through a lot of observation and documentation. Among the particular wildkangaroos the team tracked were the Goodfellow's tree, the red, and the eastern gray.
The researchers also spent some time watching the activities of the red-necked wallaby.
Notes were kept on which hand the animals used when performing varying tasks such as cleaning themselves and eating.
An overwhelming preference for the left hand was observed, although in some less consistently than in others.
While scientists have found some evidence of various species displaying handedness in a lesser degree, until now, it has not been found to be as pronounced as it is in humans.
Scientists believe it may have to do with the ability to walk on two legs, leaving the hands free to become more specialized.