“Research on wild kangaroos in Australia is challenging the notion that having a strong hand preference is a trait that developed primarily in people and other primates.

Scientists said on Thursday that these Australian marsupials displayed a natural preference for using their left hand for feeding, self-grooming and other activities. So while most people are right-handed, most kangaroos are lefties.
  
They found that two large, bipedal species, the eastern grey kangaroo and the red kangaroo, exhibited left-handedness in all tasks, including supporting the body with one forelimb in a tripedal stance.”

 “My, my, how veddy, veddy interesting.”