Ans: The process of shedding of old parts of the body and replacing them with new ones is known as moulting. It can be moulting or molting depending on the version of English, either american or british, used. Examples of moulting include, the shedding of old feathers by birds, the shedding of skin by the snake, etc. The blowing of coats or blowing of hair by the dogs is also a moulting process and is commonly noticeable. The only prerequisite is moulting is periodical and may occur annually or in certain time intervals as a stage in the life-time of animals.