The Yurethra is the yukkuri urethra. It acts as an orifice to excrete sugar water, a byproduct of their ability to turn (barely) edible food and sweets into new filling for themselves and use water to hydrate themselves. To avoid accumulating too much water, yukkuris naturally expel water mixed with excess sugar, the pee pee. Due to the constant trickling of sugary water, orphan or neglected koyukkuris in the wild are often prone to dangerous mold, a condition untreatable in the wild. Thus, parent yukkuris care the most about their offspring hygiene.