Pigs actually don’t “sweat like pigs” because they have no sweat glands. That’s why they roll in the mud to cool off.
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.