Unlike other mammals, human hair growth and shedding is random and not seasonal or cyclical. At any given time, a random number of hairs will be in one of three stages of growth and shedding: anagen, catagen, and telogen. Anagen. Anagen is the active phase of the hair. The cells in the root of the hair are dividing rapidly. A new hair is formed and pushes the club hair (a hair that has stopped growing or is no longer in the anagen phase) up the follicle and eventually out. During this phase the hair grows about 1 cm every 28 days. Scalp hair stays in this active phase of growth for two to six years. Some people have difficulty growing their hair beyond a certain length because they have a short active phase of growth. On the other hand, people with very long hair have a long active phase of growth.
Where does a monkey live? Quick Answer. So-called Old World monkeys live in Africa and Asia, while New World monkeys live in Mexico, Central America and South America. Old World monkeys include mangabeys, macaques, baboons and colobus monkeys; New World monkeys include spider, howler and capuchin monkeys. Continue Reading.
In East Africa, vervet monkeys can live in mountain areas up to about 13,000 feet, but they do not inhabit rain forests or deserts. Their preferred habitat is acacia woodland along streams, rivers, and lakes. Tags: East Africa View Africa | Habitat.