why left handers are rare

Do left-handers have special abilities as they are rare among us?

Few people have left-handers and its puzzle why it is? Most of the people are right-handers and only 10 percent people have left-handers why? It seems like the simple question but actually it includes the full mystery of science. Scientists have long wondered why left-handed people are in rarity. The new study shows that it happens due to balance between cooperation and competition in human evolution. Scientists come up with