I think "NO" makes sense because Children would say "NO" BUT "NO" is also the abbreviation for nitric oxide, a gas..
Nitric Oxide (NO) is naturally found in the human body. It is a neurotransmitter, which means that it helps different parts of the body communicate with each other. As a neurotransmitter, it has various actions in the body. So, for example, in the bladder, nitric oxide acts to relax the urethra and some of the muscles involved in urination. (makes boys pee?)
Nitric oxide also a critical link in the hair growth process, which would make girls brush their hair.
Nitric Oxide is also involved in tear production.
Because nistic acid dialates blood vessels and is involved with hair folicles, can it give loft to the polar bears fur. Since each hair is translucent, This would help give its white appearance.
maybe it's a start?