Long-tailed weasel. The long-tailed weasel (Mustela frenata), also known as the bridled weasel or big stoat, is a species of mustelid distributed from southern Canada throughout all the United States and Mexico, southward through all of Central America and into northern South America.
Hypomenorrhea or hypomenorrhoea, also known as short or scanty periods, is extremely light menstrual blood flow. It is the opposite of hypermenorrhea which is more properly called menorrhagia.
The Menstrual Phase. The menstrual phase is the phase during which the lining of the uterus, called the endometrium, is shed as menstrual flow out of the cervix and vagina. This process is what women experience during their menstrual periods, and the menstrual flow actually consists of blood, mucus, and tissue. The first day of menstrual flow is defined as day number one of the next menstrual cycle.