The left-handedness was considered as evil or unnatural in humans’ long time ago. The scientists even investigated it as being a disease but finally concluded it as natural tendency. There are many mammals that prefer left hands while performing tasks and it has to do with the active part of brain. The researchers have discovered another species with similar preferences.
Wild Kangaroos have been spotted while using left hands more frequently. Grooming and feeding was predominantly involved the use of left hand. Population level handedness is clearly visible here in an animal other than human. The majority of humans are right-handed. But experts are still confused about the nature of handedness.
Researchers observed these creatures in their natural habitat. Roo along with wallaby species showed left-handed patterns. Marsupial uses all four legs war walk doesn’t have any hand preferences. Current Biology, a scientific research journal published the data by Russian scientists. The researchers are from St Petersburg State University.
The field test was conducted in Australia in a collaboration of wildlife ecologist Janeane Ingram. He studies for PhD at the University of Tasmania. The scientific community still has some doubts about the research. The data will contribute to more understanding of the brain symmetry and the evolution of mammals. This will also shed more light on handedness patterns across the species.
The researchers have managed to break the belief that declared handedness as human only phenomenon. The behavior and brain structural researches showed the opposite in last two decades.