Nostril hairs serve no practical purpose. Rather than keep germs out of the body, they are often the first points of infection, harvesting germs and allowing them to enter the body through the follicles. One year after Sir Walter Raleigh returned from the New World with tobacco, cigarettes were illegal throughout the British Empire, due to their habit-forming nature. There is a breed of whale, the Strercus Orisculus, which is only five inches long. In Alaska, women weren't allowed to vote until 1972.
Most snakes have legs until they shed their first skin.
Women have been surgically augmenting their breast size for centuries, and the practice is the oldest known form of cosmetic surgery. Silvia Adams, John Quincy Adams's first lady, had wooden enlargements put into her breasts. Cleopatra had stones in hers.