Researchers find most kangaroos are left-handed

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Researchers Find 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.

Rare albino kangaroos
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Researchers find most kangaroos are left-handed
(Photo via Getty)
An albino baby kangaroo and its mother hop around their enclosure at the Enghave Animal & Nature Park in Broerup, 256 kms (159 miles) west of Denmark's capital Copenhagen Friday April 24, 2009. The albino Bennett kangaroo has been exploring the world outside its mother's pouch for about two weeks, one of the owners of the park said. Karina Christensen, who owns the park with Niels Christensen, added that the albino kangaroo has not been named yet, because its sex is still unknown. Its mother also has no name, but its grandmother was named Snow White, she said. Albino kangaroos are very rare, with only about 1 of every 10,000 kangaroos being born white, Karina Christensen said. (AP Photo/POLFOTO, Holger Bundgaard)

Eastern Grey Kangaroos (Macropus giganteus) Wilsons Promontory National Park, Australia. (Photo via Getty)

Male baby Kangaroo Norman cuddles with its substitute mother and zookeeper Yvonne Wicht at the Zoo in Krefeld, Germany, Friday, Feb. 6, 2015. Norman was born in September and was expulsed by it's biological mother so that zoo keeper Wicht jumped into that role. The resettlement into it's family is planned for spring. (AP Photo/Frank Augstein)
Rare albino kangaroo came into the world in May in Osijek ZOO, the last few weeks has ventured to go from mother and explore it enclosure. (Photo: Marko Mrkonjic/PIXSELL)
A rare albino kangaroo appears camouflaged against the coral sands of Lovers' Cove on Daydream Island in the Whitsundays archipelago off Queensland on July 11, 2010. Albinism (from Latin albus, 'white') is a congenital disorder characterized by the complete or partial absence of pigment in the hair due to the absence of an enzyme involved in the production of melanin and results from inheritance of the recessive gene alleles. (Photo by Torsten Blackwood, AFP/Getty Images)
Irwin Kangaroo, right, and Christie Carr, left, have found a new home at the Garold Wayne Interactive Zoological Park in Wynnewood, Okla, Wednesday, Aug. 28, 2013. (AP Photo/Sue Ogrocki)
Sydney, New South Wales, Australia. (Photo via Getty)
Kangaroo with baby joey
Rare albino kangaroo came into the world in May in Osijek ZOO, the last few weeks has ventured to go from mother and explore it enclosure. (Photo: Marko Mrkonjic/PIXSELL)
Albino and brown kangaroo on green grass
A baby albino kangaroo looks out of it's mothers pouch at the zoo in Duisburg, Germany, Wednesday, May 29, 2013. Albino kangaroos in wildlife have a probability of 1 to 20,000. The same mother had an albino baby last year which was caught by a fox and died. (AP Photo/Frank Augstein)

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.
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