For a lot of human history, lefties have been seen as a little odd, and unfortunately some have even been treated very badly. For example, the word “sinister” comes from the Latin for “left” or “left hand”. Luckily, some cultures
Raising a Left-Handed Child
Biology determines handedness in chimps, study finds
What makes a chimpanzee left-handed–nature or environmental influences? Mostly nature, according to a recent study of chimp mothers and infants. That result refutes past animal research, which suggested that behavioral reinforcement and other external factors largely determine animals’ hand–or paw–preferences.