Useless fact
Sloths can hold their breath underwater for up to forty minutes, which is longer than most dolphins.
Why this is true — By slowing their heart rate down to a third of its usual pace, three-toed sloths can survive underwater for up to 40 minutes, whereas most dolphins must surface every 10 to 15 minutes.
More useless facts
- The metal band that holds the eraser onto the end of a pencil is called a ferrule.
- The small extra pocket on the front of jeans was originally designed to hold pocket watches.
- The metallic smell on your hands after touching coins is actually a type of human body odor triggered by the chemical reaction with the metal.
- The wire cage that holds the cork in a bottle of champagne is called a muselet.