Talk about a waiting game: It takes six months for fingernails to grow out from the base to the tip.
The dwarf planet Pluto was discovered on this day in 1930 by an astronomer at an Arizona observatory.
Talk about recycling: Your heart pumps the blood through your body around 1,000 times each day — or once every 1 1/2 minutes.
The whiskers above a dog’s eyes are called supraorbital whiskers; they are like extensions of the eyelashes that help keep objects from poking or injuring the eyes.
Many famous films have debuted on Christmas Day, from classics like “To Kill a Mockingbird” and “The Godfather: Part III” to the more recent “Les Miserables” and “Marley & Me.”