Why are balls wrinkly ?!
Question:
Why are balls wrinkly ?
Answers:
so the skin can basically expand and contract according to the temperature, they have temps that are more optimum for them, when it's colder they shrink up to be warmed up by the body, and when it's warm out they want to be further from the body to help keep cool (it would work better if people didn't wear clothes, but that's why)