This overview shows the length of Museum visitors’ ears. The vertical axis shows ear length in inches. Do you think a person’s age, height, or sex correlate with their ear length? The graph shows the measurements of 150 Museum visitors’ ears.
The shape of your ear was determined during a critical period of your development. During this time, between four and nine weeks after conception, the environment in the womb had the greatest impact on the genes that determined your ears’ shape.
My, what big ears you have
Your basic ear shape is established during fetal development, but the story does not end there. Our ears continue to lengthen throughout our lives.