Prenatal virilization. In the prenatal period, virilization refers to closure of the perineum, thinning and wrinkling (rugation) of the scrotum, growth of the phallus, and closure of the urethral groove to the tip of the penis. In this context, masculinization is synonymous with virilization.
[QUOTE=Greatnorth;481595]Well, usually I wait till there's a good 3-4 foot of snow because you don't want your skis to touch the dirt/ground or whatever isn't snow. Snowmobiles are made to operate on snow and that's all they should do. Really 3-4 feet of snow until you go snowmobiling??? They open the trails around here when roughly 6-7 inches of snow are on the ground. Never had a problem running my sleds in 6 inches of snow or more.
the snowmobile breaks through the ice or comes across open water, loading or unloading a snowmobile, riding conditions are unsafe (such as bad weather). To safely drive a snowmobile, you need to be strong, skilled and mature. For this reason: Children and teens under 16 years of age should not operate snowmobiles. Head injuries are more common in passengers than in drivers. It takes strength and stamina to be a passenger on a snowmobile. Passengers need to hold on tight for a long period of time, which can be hard to do, especially when the snowmobile is running over bumpy ground at a high speed. For this reason: Children under the age of 6 should never ride as passengers on a snowmobile.